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authorPhilipp Gesang <phg42.2a@gmail.com>2015-03-18 08:08:59 +0100
committerPhilipp Gesang <phg42.2a@gmail.com>2015-03-18 08:08:59 +0100
commitc4c4901173b0f4284534db1b6a3cfe865b05e15c (patch)
treef27d1546977bae78b33180192cc80eecc568bf4c
parentb966e35c9df3cca2a25baaf68574d0b8d94eef39 (diff)
parentf5dd1ec3517cda47e5a48221d4ff5cfced12ea06 (diff)
downloadluaotfload-c4c4901173b0f4284534db1b6a3cfe865b05e15c.tar.gz
Merge pull request #266 from phi-gamma/master
fontloader fallback
Diffstat
-rw-r--r--scripts/mkimport6
-rw-r--r--src/fontloader/misc/fontloader-font-afm.lua11
-rw-r--r--src/fontloader/misc/fontloader-font-ini.lua2
-rw-r--r--src/fontloader/misc/fontloader-font-otf.lua26
-rw-r--r--src/fontloader/misc/fontloader-font-tfm.lua6
-rw-r--r--src/fontloader/misc/fontloader-fonts-cbk.lua13
-rw-r--r--src/fontloader/misc/fontloader-fonts-inj.lua385
-rw-r--r--src/fontloader/misc/fontloader-fonts-otn.lua12
-rw-r--r--src/fontloader/misc/fontloader-l-file.lua135
-rw-r--r--src/fontloader/misc/fontloader-l-io.lua5
-rw-r--r--src/fontloader/misc/fontloader-l-lua.lua11
-rw-r--r--src/fontloader/misc/fontloader-l-table.lua32
-rw-r--r--src/fontloader/misc/fontloader-util-str.lua4
-rw-r--r--src/fontloader/runtime/fontloader-basics-gen.lua9
-rw-r--r--src/fontloader/runtime/fontloader-fontloader.lua526
-rw-r--r--src/fontloader/runtime/fontloader-tl2014.lua13936
-rw-r--r--src/luaotfload-configuration.lua33
-rw-r--r--src/luaotfload-main.lua13
18 files changed, 14627 insertions, 538 deletions
diff --git a/scripts/mkimport b/scripts/mkimport
index 132d026..2f64d62 100644
--- a/scripts/mkimport
+++ b/scripts/mkimport
@@ -610,11 +610,11 @@ local describe = function (target, location)
local dname = def.name
local dkind = def.kind
- local subdir, ourname = derive_ourname (dname, dkind)
+ local subdir, ourname = derive_ourname (def.ours or dname, dkind)
separator ()
status ("category %s", cat)
status ("kind %s", kind_name[dkind])
- status ("in Context %s", derive_fullname (cat, def.name, def.kind))
+ status ("in Context %s", derive_fullname (cat, dname, dkind))
status ("in Luaotfload %s", ourname)
separator ()
return 0
@@ -633,7 +633,7 @@ local tell = function (arg)
end
local help = function ()
- iowrite "usage: mkinfo <command> [<args>]\n"
+ iowrite "usage: mkimport <command> [<args>]\n"
iowrite "\n"
iowrite "Where <command> is one of\n"
iowrite " help Print this help message\n"
diff --git a/src/fontloader/misc/fontloader-font-afm.lua b/src/fontloader/misc/fontloader-font-afm.lua
index ca5616a..a96c668 100644
--- a/src/fontloader/misc/fontloader-font-afm.lua
+++ b/src/fontloader/misc/fontloader-font-afm.lua
@@ -48,6 +48,11 @@ local definers = fonts.definers
local readers = fonts.readers
local constructors = fonts.constructors
+local fontloader = fontloader
+local font_to_table = fontloader.to_table
+local open_font = fontloader.open
+local close_font = fontloader.close
+
local afm = constructors.newhandler("afm")
local pfb = constructors.newhandler("pfb")
@@ -222,10 +227,10 @@ end
local function get_indexes(data,pfbname)
data.resources.filename = resolvers.unresolve(pfbname) -- no shortcut
- local pfbblob = fontloader.open(pfbname)
+ local pfbblob = open_font(pfbname)
if pfbblob then
local characters = data.characters
- local pfbdata = fontloader.to_table(pfbblob)
+ local pfbdata = font_to_table(pfbblob)
if pfbdata then
local glyphs = pfbdata.glyphs
if glyphs then
@@ -251,7 +256,7 @@ local function get_indexes(data,pfbname)
elseif trace_loading then
report_afm("no data in pfb file %a",pfbname)
end
- fontloader.close(pfbblob)
+ close_font(pfbblob)
elseif trace_loading then
report_afm("invalid pfb file %a",pfbname)
end
diff --git a/src/fontloader/misc/fontloader-font-ini.lua b/src/fontloader/misc/fontloader-font-ini.lua
index 884b224..c547f89 100644
--- a/src/fontloader/misc/fontloader-font-ini.lua
+++ b/src/fontloader/misc/fontloader-font-ini.lua
@@ -29,4 +29,4 @@ fonts.readers = { }
fonts.definers = { methods = { } }
fonts.loggers = { register = function() end }
-fontloader.totable = fontloader.to_table
+fontloader.totable = fontloader.to_table -- not used
diff --git a/src/fontloader/misc/fontloader-font-otf.lua b/src/fontloader/misc/fontloader-font-otf.lua
index 1bb608f..c7e83a4 100644
--- a/src/fontloader/misc/fontloader-font-otf.lua
+++ b/src/fontloader/misc/fontloader-font-otf.lua
@@ -53,16 +53,17 @@ local otf = fonts.handlers.otf
otf.glists = { "gsub", "gpos" }
-otf.version = 2.802 -- beware: also sync font-mis.lua
+otf.version = 2.803 -- beware: also sync font-mis.lua
otf.cache = containers.define("fonts", "otf", otf.version, true)
-local fontdata = fonts.hashes.identifiers
-local chardata = characters and characters.data -- not used
-
+local hashes = fonts.hashes
local definers = fonts.definers
local readers = fonts.readers
local constructors = fonts.constructors
+local fontdata = hashes and hashes.identifiers
+local chardata = characters and characters.data -- not used
+
local otffeatures = constructors.newfeatures("otf")
local registerotffeature = otffeatures.register
@@ -84,7 +85,12 @@ local applyruntimefixes = fonts.treatments and fonts.treatments.applyfixes
local wildcard = "*"
local default = "dflt"
-local fontloaderfields = fontloader.fields
+local fontloader = fontloader
+local open_font = fontloader.open
+local close_font = fontloader.close
+local font_fields = fontloader.fields
+local apply_featurefile = fontloader.apply_featurefile
+
local mainfields = nil
local glyphfields = nil -- not used yet
@@ -137,7 +143,7 @@ local function load_featurefile(raw,featurefile)
if trace_loading then
report_otf("using featurefile %a", featurefile)
end
- fontloader.apply_featurefile(raw, featurefile)
+ apply_featurefile(raw, featurefile)
end
end
@@ -437,12 +443,12 @@ function otf.load(filename,sub,featurefile) -- second argument (format) is gone
report_otf("loading %a, hash %a",filename,hash)
local fontdata, messages
if sub then
- fontdata, messages = fontloader.open(filename,sub)
+ fontdata, messages = open_font(filename,sub)
else
- fontdata, messages = fontloader.open(filename)
+ fontdata, messages = open_font(filename)
end
if fontdata then
- mainfields = mainfields or (fontloaderfields and fontloaderfields(fontdata))
+ mainfields = mainfields or (font_fields and font_fields(fontdata))
end
if trace_loading and messages and #messages > 0 then
if type(messages) == "string" then
@@ -526,7 +532,7 @@ function otf.load(filename,sub,featurefile) -- second argument (format) is gone
report_otf("preprocessing and caching time %s, packtime %s",
elapsedtime(data),packdata and elapsedtime(packtime) or 0)
end
- fontloader.close(fontdata) -- free memory
+ close_font(fontdata) -- free memory
if cleanup > 3 then
collectgarbage("collect")
end
diff --git a/src/fontloader/misc/fontloader-font-tfm.lua b/src/fontloader/misc/fontloader-font-tfm.lua
index 49df94e..ab03788 100644
--- a/src/fontloader/misc/fontloader-font-tfm.lua
+++ b/src/fontloader/misc/fontloader-font-tfm.lua
@@ -72,15 +72,15 @@ local function read_from_tfm(specification)
properties.filename = specification.filename
properties.format = fonts.formats.tfm -- better than nothing
parameters.size = size
- shared.rawdata = { }
- shared.features = features
- shared.processes = next(features) and tfm.setfeatures(tfmdata,features) or nil
--
tfmdata.properties = properties
tfmdata.resources = resources
tfmdata.parameters = parameters
tfmdata.shared = shared
--
+ shared.rawdata = { }
+ shared.features = features
+ shared.processes = next(features) and tfm.setfeatures(tfmdata,features) or nil
parameters.slant = parameters.slant or parameters[1] or 0
parameters.space = parameters.space or parameters[2] or 0
parameters.space_stretch = parameters.space_stretch or parameters[3] or 0
diff --git a/src/fontloader/misc/fontloader-fonts-cbk.lua b/src/fontloader/misc/fontloader-fonts-cbk.lua
index 414cafb..ce19c88 100644
--- a/src/fontloader/misc/fontloader-fonts-cbk.lua
+++ b/src/fontloader/misc/fontloader-fonts-cbk.lua
@@ -116,13 +116,14 @@ function nodes.handlers.nodepass(head)
if basepass and #basefonts > 0 then
for i=1,#basefonts do
local range = basefonts[i]
- local start, stop = range[1], range[2]
+ local start = range[1]
+ local stop = range[2]
if stop then
- ligaturing(start,stop)
- kerning(start,stop)
- else
- ligaturing(start)
- kerning(start)
+ start, stop = ligaturing(start,stop)
+ start, stop = kerning(start,stop)
+ elseif start then
+ start = ligaturing(start)
+ start = kerning(start)
end
end
end
diff --git a/src/fontloader/misc/fontloader-fonts-inj.lua b/src/fontloader/misc/fontloader-fonts-inj.lua
index 3b93382..cb9ed89 100644
--- a/src/fontloader/misc/fontloader-fonts-inj.lua
+++ b/src/fontloader/misc/fontloader-fonts-inj.lua
@@ -14,13 +14,12 @@ if not nodes.properties then return end
local next, rawget = next, rawget
local utfchar = utf.char
+local fastcopy = table.fastcopy
local trace_injections = false trackers.register("fonts.injections", function(v) trace_injections = v end)
local report_injections = logs.reporter("fonts","injections")
-report_injections("using experimental injector")
-
local attributes, nodes, node = attributes, nodes, node
fonts = fonts
@@ -81,19 +80,42 @@ function injections.resetcounts()
keepregisteredcounts = false
end
+-- We need to make sure that a possible metatable will not kick in
+-- unexpectedly.
+
function injections.reset(n)
- local p = rawget(properties,start)
- if p and p.injections then
- -- todo: decrement counters? tricky as we then need to change the nof* to not increment
- -- when we change a property
- p.injections = nil -- should we keep the liga index?
+ local p = rawget(properties,n)
+ if p and rawget(p,"injections") then
+ p.injections = nil
+ end
+end
+
+function injections.copy(target,source)
+ local sp = rawget(properties,source)
+ if sp then
+ local tp = rawget(properties,target)
+ local si = rawget(sp,"injections")
+ if si then
+ si = fastcopy(si)
+ if tp then
+ tp.injections = si
+ else
+ propertydata[target] = {
+ injections = si,
+ }
+ end
+ else
+ if tp then
+ tp.injections = nil
+ end
+ end
end
end
function injections.setligaindex(n,index)
local p = rawget(properties,n)
if p then
- local i = p.injections
+ local i = rawget(p,"injections")
if i then
i.ligaindex = index
else
@@ -113,9 +135,9 @@ end
function injections.getligaindex(n,default)
local p = rawget(properties,n)
if p then
- p = p.injections
- if p then
- return p.ligaindex or default
+ local i = rawget(p,"injections")
+ if i then
+ return i.ligaindex or default
end
end
return default
@@ -134,7 +156,7 @@ function injections.setcursive(start,nxt,factor,rlmode,exit,entry,tfmstart,tfmne
--
local p = rawget(properties,start)
if p then
- local i = p.injections
+ local i = rawget(p,"injections")
if i then
i.cursiveanchor = true
else
@@ -151,7 +173,7 @@ function injections.setcursive(start,nxt,factor,rlmode,exit,entry,tfmstart,tfmne
end
local p = rawget(properties,nxt)
if p then
- local i = p.injections
+ local i = rawget(p,"injections")
if i then
i.cursivex = dx
i.cursivey = dy
@@ -185,14 +207,16 @@ function injections.setpair(current,factor,rlmode,r2lflag,spec,injection) -- r2l
end
local p = rawget(properties,current)
if p then
- local i = p.injections
+ local i = rawget(p,"injections")
if i then
- if leftkern ~= 0 or rightkern ~= 0 then
- i.leftkern = i.leftkern or 0 + leftkern
- i.rightkern = i.rightkern or 0 + rightkern
+ if leftkern ~= 0 then
+ i.leftkern = (i.leftkern or 0) + leftkern
+ end
+ if rightkern ~= 0 then
+ i.rightkern = (i.rightkern or 0) + rightkern
end
if yoffset ~= 0 then
- i.yoffset = i.yoffset or 0 + yoffset
+ i.yoffset = (i.yoffset or 0) + yoffset
end
elseif leftkern ~= 0 or rightkern ~= 0 then
p.injections = {
@@ -240,9 +264,9 @@ function injections.setkern(current,factor,rlmode,x,injection)
injection = "injections"
end
if p then
- local i = p[injection]
+ local i = rawget(p,injection)
if i then
- i.leftkern = dx + i.leftkern or 0
+ i.leftkern = dx + (i.leftkern or 0)
else
p[injection] = {
leftkern = dx,
@@ -270,7 +294,7 @@ function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase) -- ba=basean
end
local p = rawget(properties,start)
if p then
- local i = p.injections
+ local i = rawget(p,"injections")
if i then
i.markx = dx
i.marky = dy
@@ -313,18 +337,18 @@ local function show(n,what,nested,symbol)
if n then
local p = rawget(properties,n)
if p then
- local p = p[what]
- if p then
- local leftkern = p.leftkern or 0
- local rightkern = p.rightkern or 0
- local yoffset = p.yoffset or 0
- local markx = p.markx or 0
- local marky = p.marky or 0
- local markdir = p.markdir or 0
- local markbase = p.markbase or 0 -- will be markbasenode
- local cursivex = p.cursivex or 0
- local cursivey = p.cursivey or 0
- local ligaindex = p.ligaindex or 0
+ local i = rawget(p,what)
+ if i then
+ local leftkern = i.leftkern or 0
+ local rightkern = i.rightkern or 0
+ local yoffset = i.yoffset or 0
+ local markx = i.markx or 0
+ local marky = i.marky or 0
+ local markdir = i.markdir or 0
+ local markbase = i.markbase or 0 -- will be markbasenode
+ local cursivex = i.cursivex or 0
+ local cursivey = i.cursivey or 0
+ local ligaindex = i.ligaindex or 0
local margin = nested and 4 or 2
--
if rightkern ~= 0 or yoffset ~= 0 then
@@ -355,9 +379,9 @@ local function showsub(n,what,where)
report_injections("end subrun")
end
-local function trace(head)
- report_injections("begin run: %s kerns, %s pairs, %s marks and %s cursives registered",
- nofregisteredkerns,nofregisteredpairs,nofregisteredmarks,nofregisteredcursives)
+local function trace(head,where)
+ report_injections("begin run %s: %s kerns, %s pairs, %s marks and %s cursives registered",
+ where or "",nofregisteredkerns,nofregisteredpairs,nofregisteredmarks,nofregisteredcursives)
local n = head
while n do
local id = getid(n)
@@ -414,10 +438,6 @@ local function collect_glyphs_1(head)
local nf, tm = nil, nil
for n in traverse_id(glyph_code,head) do -- only needed for relevant fonts
if getsubtype(n) < 256 then
- local pn = rawget(properties,n)
- if pn then
- pn = pn.injections
- end
local f = getfont(n)
if f ~= nf then
nf = f
@@ -431,10 +451,14 @@ local function collect_glyphs_1(head)
glyphs[nofglyphs] = n
end
-- yoffsets can influence curs steps
- if pn then
- local yoffset = pn.yoffset
- if yoffset and yoffset ~= 0 then
- setfield(n,"yoffset",yoffset)
+ local p = rawget(properties,n)
+ if p then
+ local i = rawget(p,"injections")
+ if i then
+ local yoffset = i.yoffset
+ if yoffset and yoffset ~= 0 then
+ setfield(n,"yoffset",yoffset)
+ end
end
end
end
@@ -470,18 +494,20 @@ local function inject_marks(marks,nofmarks)
local n = marks[i]
local pn = rawget(properties,n)
if pn then
- pn = pn.injections
- end
- if pn then
- -- local markbase = pn.markbase
- -- if markbase then
- -- local p = markanchors[markbase]
+ pn = rawget(pn,"injections")
+ if pn then
local p = pn.markbasenode
if p then
local px = getfield(p,"xoffset")
local ox = 0
+ local rightkern = nil
local pp = rawget(properties,p)
- local rightkern = pp and pp.rightkern
+ if pp then
+ pp = rawget(pp,"injections")
+ if pp then
+ rightkern = pp.rightkern
+ end
+ end
if rightkern then -- x and w ~= 0
if pn.markdir < 0 then
-- kern(w-x) glyph(p) kern(x) mark(n)
@@ -490,8 +516,13 @@ local function inject_marks(marks,nofmarks)
else
-- kern(x) glyph(p) kern(w-x) mark(n)
-- ox = px - getfield(p,"width") + pn.markx - pp.leftkern
- ox = px - pn.markx - pp.leftkern
- -- report_injections("l2r case 1: %p",ox)
+ local leftkern = pp.leftkern
+ if leftkern then
+ ox = px - pn.markx
+ else
+ ox = px - pn.markx - leftkern
+ end
+-- report_injections("l2r case 1: %p",ox)
end
else
-- we need to deal with fonts that have marks with width
@@ -525,10 +556,10 @@ local function inject_marks(marks,nofmarks)
end
setfield(n,"yoffset",oy)
else
- -- normally this can't happen (only when in trace mode which is a special case anyway)
+ -- normally this can't happen (only when in trace mode which is a special case anyway)
-- report_injections("missing mark anchor %i",pn.markbase or 0)
end
- -- end
+ end
end
end
end
@@ -540,14 +571,14 @@ local function inject_cursives(glyphs,nofglyphs)
local n = glyphs[i]
local pn = rawget(properties,n)
if pn then
- pn = pn.injections
+ pn = rawget(pn,"injections")
end
if pn then
local cursivex = pn.cursivex
if cursivex then
if cursiveanchor then
if cursivex ~= 0 then
- pn.leftkern = pn.leftkern or 0 + cursivex
+ pn.leftkern = (pn.leftkern or 0) + cursivex
end
if lastanchor then
if maxc == 0 then
@@ -622,16 +653,16 @@ local function inject_kerns(head,glyphs,nofglyphs)
local n = glyphs[i]
local pn = rawget(properties,n)
if pn then
- pn = pn.injections
- end
- if pn then
- local leftkern = pn.leftkern
- if leftkern ~= 0 then
- insert_node_before(head,n,newkern(leftkern)) -- type 0/2
- end
- local rightkern = pn.rightkern
- if rightkern and rightkern ~= 0 then
- insert_node_after(head,n,newkern(rightkern)) -- type 0/2
+ local i = rawget(pn,"injections")
+ if i then
+ local leftkern = i.leftkern
+ if leftkern and leftkern ~= 0 then
+ insert_node_before(head,n,newkern(leftkern)) -- type 0/2
+ end
+ local rightkern = i.rightkern
+ if rightkern and rightkern ~= 0 then
+ insert_node_after(head,n,newkern(rightkern)) -- type 0/2
+ end
end
end
end
@@ -640,7 +671,7 @@ end
local function inject_everything(head,where)
head = tonut(head)
if trace_injections then
- trace(head)
+ trace(head,"everything")
end
local glyphs, nofglyphs, marks, nofmarks
if nofregisteredpairs > 0 then
@@ -652,7 +683,7 @@ local function inject_everything(head,where)
if nofregisteredcursives > 0 then
inject_cursives(glyphs,nofglyphs)
end
- if nofregisteredmarks > 0 then
+ if nofregisteredmarks > 0 then -- and nofmarks > 0
inject_marks(marks,nofmarks)
end
inject_kerns(head,glyphs,nofglyphs)
@@ -671,7 +702,7 @@ end
local function inject_kerns_only(head,where)
head = tonut(head)
if trace_injections then
- trace(head)
+ trace(head,"kerns")
end
local n = head
local p = nil
@@ -684,10 +715,10 @@ local function inject_kerns_only(head,where)
if p then
local d = getfield(p,"post")
if d then
- local pn = pn.postinjections
- if pn then
- local leftkern = pn.leftkern
- if leftkern ~= 0 then
+ local i = rawget(pn,"postinjections")
+ if i then
+ local leftkern = i.leftkern
+ if leftkern and leftkern ~= 0 then
local t = find_tail(d)
insert_node_after(d,t,newkern(leftkern))
end
@@ -695,28 +726,28 @@ local function inject_kerns_only(head,where)
end
local d = getfield(p,"replace")
if d then
- local pn = pn.replaceinjections
- if pn then
- local leftkern = pn.leftkern
- if leftkern ~= 0 then
+ local i = rawget(pn,"replaceinjections")
+ if i then
+ local leftkern = i.leftkern
+ if leftkern and leftkern ~= 0 then
local t = find_tail(d)
insert_node_after(d,t,newkern(leftkern))
end
end
else
- local pn = pn.injections
- if pn then
- local leftkern = pn.leftkern
- if leftkern ~= 0 then
+ local i = rawget(pn,"injections")
+ if i then
+ local leftkern = i.leftkern
+ if leftkern and leftkern ~= 0 then
setfield(p,"replace",newkern(leftkern))
end
end
end
else
- local pn = pn.injections
- if pn then
- local leftkern = pn.leftkern
- if leftkern ~= 0 then
+ local i = rawget(pn,"injections")
+ if i then
+ local leftkern = i.leftkern
+ if leftkern and leftkern ~= 0 then
head = insert_node_before(head,n,newkern(leftkern))
end
end
@@ -734,12 +765,12 @@ local function inject_kerns_only(head,where)
if getsubtype(n) < 256 then
local pn = rawget(properties,n)
if pn then
- pn = pn.preinjections
- end
- if pn then
- local leftkern = pn.leftkern
- if leftkern ~= 0 then
- h = insert_node_before(h,n,newkern(leftkern))
+ local i = rawget(pn,"preinjections")
+ if i then
+ local leftkern = i.leftkern
+ if leftkern and leftkern ~= 0 then
+ h = insert_node_before(h,n,newkern(leftkern))
+ end
end
end
else
@@ -757,12 +788,12 @@ local function inject_kerns_only(head,where)
if getsubtype(n) < 256 then
local pn = rawget(properties,n)
if pn then
- pn = pn.postinjections
- end
- if pn then
- local leftkern = pn.leftkern
- if leftkern ~= 0 then
- h = insert_node_before(h,n,newkern(leftkern))
+ local i = rawget(pn,"postinjections")
+ if i then
+ local leftkern = i.leftkern
+ if leftkern and leftkern ~= 0 then
+ h = insert_node_before(h,n,newkern(leftkern))
+ end
end
end
else
@@ -780,12 +811,12 @@ local function inject_kerns_only(head,where)
if getsubtype(n) < 256 then
local pn = rawget(properties,n) -- why can it be empty { }
if pn then
- pn = pn.replaceinjections
- end
- if pn then
- local leftkern = pn.leftkern
- if leftkern ~= 0 then
- h = insert_node_before(h,n,newkern(leftkern))
+ local i = rawget(pn,"replaceinjections")
+ if i then
+ local leftkern = i.leftkern
+ if leftkern and leftkern ~= 0 then
+ h = insert_node_before(h,n,newkern(leftkern))
+ end
end
end
else
@@ -814,7 +845,7 @@ end
local function inject_pairs_only(head,where)
head = tonut(head)
if trace_injections then
- trace(head)
+ trace(head,"pairs")
end
--
local n = head
@@ -828,14 +859,14 @@ local function inject_pairs_only(head,where)
if p then
local d = getfield(p,"post")
if d then
- local pn = pn.postinjections
- if pn then
- local leftkern = pn.leftkern
- if leftkern ~= 0 then
+ local i = rawget(pn,"postinjections")
+ if i then
+ local leftkern = i.leftkern
+ if leftkern and leftkern ~= 0 then
local t = find_tail(d)
insert_node_after(d,t,newkern(leftkern))
end
- -- local rightkern = pn.rightkern
+ -- local rightkern = i.rightkern
-- if rightkern and rightkern ~= 0 then
-- insert_node_after(head,n,newkern(rightkern))
-- n = getnext(n) -- to be checked
@@ -844,27 +875,27 @@ local function inject_pairs_only(head,where)
end
local d = getfield(p,"replace")
if d then
- local pn = pn.replaceinjections
- if pn then
- local leftkern = pn.leftkern
- if leftkern ~= 0 then
+ local i = rawget(pn,"replaceinjections")
+ if i then
+ local leftkern = i.leftkern
+ if leftkern and leftkern ~= 0 then
local t = find_tail(d)
insert_node_after(d,t,newkern(leftkern))
end
- -- local rightkern = pn.rightkern
+ -- local rightkern = i.rightkern
-- if rightkern and rightkern ~= 0 then
-- insert_node_after(head,n,newkern(rightkern))
-- n = getnext(n) -- to be checked
-- end
end
else
- local pn = pn.injections
- if pn then
- local leftkern = pn.leftkern
- if leftkern ~= 0 then
+ local i = rawget(pn,"injections")
+ if i then
+ local leftkern = i.leftkern
+ if leftkern and leftkern ~= 0 then
setfield(p,"replace",newkern(leftkern))
end
- -- local rightkern = pn.rightkern
+ -- local rightkern = i.rightkern
-- if rightkern and rightkern ~= 0 then
-- insert_node_after(head,n,newkern(rightkern))
-- n = getnext(n) -- to be checked
@@ -873,17 +904,17 @@ local function inject_pairs_only(head,where)
end
else
-- this is the most common case
- local pn = pn.injections
- if pn then
- local yoffset = pn.yoffset
+ local i = rawget(pn,"injections")
+ if i then
+ local yoffset = i.yoffset
if yoffset and yoffset ~= 0 then
setfield(n,"yoffset",yoffset)
end
- local leftkern = pn.leftkern
- if leftkern ~= 0 then
+ local leftkern = i.leftkern
+ if leftkern and leftkern ~= 0 then
insert_node_before(head,n,newkern(leftkern))
end
- local rightkern = pn.rightkern
+ local rightkern = i.rightkern
if rightkern and rightkern ~= 0 then
insert_node_after(head,n,newkern(rightkern))
n = getnext(n) -- to be checked
@@ -901,23 +932,23 @@ local function inject_pairs_only(head,where)
local h = d
for n in traverse_id(glyph_code,d) do
if getsubtype(n) < 256 then
- local pn = rawget(properties,n)
- if pn then
- pn = pn.preinjections
- end
- if pn then
- local yoffset = pn.yoffset
- if yoffset and yoffset ~= 0 then
- setfield(n,"yoffset",yoffset)
- end
- local leftkern = pn.leftkern
- if leftkern ~= 0 then
- h = insert_node_before(h,n,newkern(leftkern))
- end
- local rightkern = pn.rightkern
- if rightkern and rightkern ~= 0 then
- insert_node_after(head,n,newkern(rightkern))
- n = getnext(n) -- to be checked
+ local p = rawget(properties,n)
+ if p then
+ local i = rawget(p,"preinjections")
+ if i then
+ local yoffset = i.yoffset
+ if yoffset and yoffset ~= 0 then
+ setfield(n,"yoffset",yoffset)
+ end
+ local leftkern = i.leftkern
+ if leftkern ~= 0 then
+ h = insert_node_before(h,n,newkern(leftkern))
+ end
+ local rightkern = i.rightkern
+ if rightkern and rightkern ~= 0 then
+ insert_node_after(head,n,newkern(rightkern))
+ n = getnext(n) -- to be checked
+ end
end
end
else
@@ -933,23 +964,23 @@ local function inject_pairs_only(head,where)
local h = d
for n in traverse_id(glyph_code,d) do
if getsubtype(n) < 256 then
- local pn = rawget(properties,n)
- if pn then
- pn = pn.postinjections
- end
- if pn then
- local yoffset = pn.yoffset
- if yoffset and yoffset ~= 0 then
- setfield(n,"yoffset",yoffset)
- end
- local leftkern = pn.leftkern
- if leftkern ~= 0 then
- h = insert_node_before(h,n,newkern(leftkern))
- end
- local rightkern = pn.rightkern
- if rightkern and rightkern ~= 0 then
- insert_node_after(head,n,newkern(rightkern))
- n = getnext(n) -- to be checked
+ local p = rawget(properties,n)
+ if p then
+ local i = rawget(p,"postinjections")
+ if i then
+ local yoffset = i.yoffset
+ if yoffset and yoffset ~= 0 then
+ setfield(n,"yoffset",yoffset)
+ end
+ local leftkern = i.leftkern
+ if leftkern and leftkern ~= 0 then
+ h = insert_node_before(h,n,newkern(leftkern))
+ end
+ local rightkern = i.rightkern
+ if rightkern and rightkern ~= 0 then
+ insert_node_after(head,n,newkern(rightkern))
+ n = getnext(n) -- to be checked
+ end
end
end
else
@@ -965,23 +996,23 @@ local function inject_pairs_only(head,where)
local h = d
for n in traverse_id(glyph_code,d) do
if getsubtype(n) < 256 then
- local pn = rawget(properties,n)
- if pn then
- pn = pn.replaceinjections
- end
- if pn then
- local yoffset = pn.yoffset
- if yoffset and yoffset ~= 0 then
- setfield(n,"yoffset",yoffset)
- end
- local leftkern = pn.leftkern
- if leftkern ~= 0 then
- h = insert_node_before(h,n,newkern(leftkern))
- end
- local rightkern = pn.rightkern
- if rightkern and rightkern ~= 0 then
- insert_node_after(head,n,newkern(rightkern))
- n = getnext(n) -- to be checked
+ local p = rawget(properties,n)
+ if p then
+ local i = rawget(pn,"replaceinjections")
+ if i then
+ local yoffset = i.yoffset
+ if yoffset and yoffset ~= 0 then
+ setfield(n,"yoffset",yoffset)
+ end
+ local leftkern = i.leftkern
+ if leftkern and leftkern ~= 0 then
+ h = insert_node_before(h,n,newkern(leftkern))
+ end
+ local rightkern = i.rightkern
+ if rightkern and rightkern ~= 0 then
+ insert_node_after(head,n,newkern(rightkern))
+ n = getnext(n) -- to be checked
+ end
end
end
else
diff --git a/src/fontloader/misc/fontloader-fonts-otn.lua b/src/fontloader/misc/fontloader-fonts-otn.lua
index 32dc820..3f53078 100644
--- a/src/fontloader/misc/fontloader-fonts-otn.lua
+++ b/src/fontloader/misc/fontloader-fonts-otn.lua
@@ -6,6 +6,9 @@ if not modules then modules = { } end modules ['font-otn'] = {
license = "see context related readme files",
}
+-- todo: looks like we have a leak somewhere (probably in ligatures)
+-- todo: copy attributes to disc
+
-- this is a context version which can contain experimental code, but when we
-- have serious patches we also need to change the other two font-otn files
@@ -243,6 +246,7 @@ local setcursive = injections.setcursive
local setkern = injections.setkern
local setpair = injections.setpair
local resetinjection = injections.reset
+local copyinjection = injections.copy
local setligaindex = injections.setligaindex
local getligaindex = injections.getligaindex
@@ -354,13 +358,19 @@ local function copy_glyph(g) -- next and prev are untouched !
if components then
setfield(g,"components",nil)
local n = copy_node(g)
+ copyinjection(n,g) -- we need to preserve the lig indices
setfield(g,"components",components)
return n
else
- return copy_node(g)
+ local n = copy_node(g)
+ copyinjection(n,g) -- we need to preserve the lig indices
+ return n
end
end
+--
+
+
-- start is a mark and we need to keep that one
local function markstoligature(kind,lookupname,head,start,stop,char)
diff --git a/src/fontloader/misc/fontloader-l-file.lua b/src/fontloader/misc/fontloader-l-file.lua
index 2742e99..7ed6370 100644
--- a/src/fontloader/misc/fontloader-l-file.lua
+++ b/src/fontloader/misc/fontloader-l-file.lua
@@ -15,51 +15,53 @@ if not lfs then
lfs = optionalrequire("lfs")
end
-if not lfs then
-
- lfs = {
- getcurrentdir = function()
- return "."
- end,
- attributes = function()
- return nil
- end,
- isfile = function(name)
- local f = io.open(name,'rb')
- if f then
- f:close()
- return true
- end
- end,
- isdir = function(name)
- print("you need to load lfs")
- return false
- end
- }
-
-elseif not lfs.isfile then
-
- local attributes = lfs.attributes
-
- function lfs.isdir(name)
- return attributes(name,"mode") == "directory"
- end
-
- function lfs.isfile(name)
- return attributes(name,"mode") == "file"
- end
-
- -- function lfs.isdir(name)
- -- local a = attributes(name)
- -- return a and a.mode == "directory"
- -- end
-
- -- function lfs.isfile(name)
- -- local a = attributes(name)
- -- return a and a.mode == "file"
- -- end
-
-end
+-- -- see later
+--
+-- if not lfs then
+--
+-- lfs = {
+-- getcurrentdir = function()
+-- return "."
+-- end,
+-- attributes = function()
+-- return nil
+-- end,
+-- isfile = function(name)
+-- local f = io.open(name,'rb')
+-- if f then
+-- f:close()
+-- return true
+-- end
+-- end,
+-- isdir = function(name)
+-- print("you need to load lfs")
+-- return false
+-- end
+-- }
+--
+-- elseif not lfs.isfile then
+--
+-- local attributes = lfs.attributes
+--
+-- function lfs.isdir(name)
+-- return attributes(name,"mode") == "directory"
+-- end
+--
+-- function lfs.isfile(name)
+-- return attributes(name,"mode") == "file"
+-- end
+--
+-- -- function lfs.isdir(name)
+-- -- local a = attributes(name)
+-- -- return a and a.mode == "directory"
+-- -- end
+--
+-- -- function lfs.isfile(name)
+-- -- local a = attributes(name)
+-- -- return a and a.mode == "file"
+-- -- end
+--
+-- end
local insert, concat = table.insert, table.concat
local match, find, gmatch = string.match, string.find, string.gmatch
@@ -72,6 +74,28 @@ local checkedsplit = string.checkedsplit
local P, R, S, C, Cs, Cp, Cc, Ct = lpeg.P, lpeg.R, lpeg.S, lpeg.C, lpeg.Cs, lpeg.Cp, lpeg.Cc, lpeg.Ct
+-- better this way:
+
+local tricky = S("/\\") * P(-1)
+local attributes = lfs.attributes
+
+if sandbox then
+ sandbox.redefine(lfs.isfile,"lfs.isfile")
+ sandbox.redefine(lfs.isdir, "lfs.isdir")
+end
+
+function lfs.isdir(name)
+ if lpegmatch(tricky,name) then
+ return attributes(name,"mode") == "directory"
+ else
+ return attributes(name.."/.","mode") == "directory"
+ end
+end
+
+function lfs.isfile(name)
+ return attributes(name,"mode") == "file"
+end
+
local colon = P(":")
local period = P(".")
local periods = P("..")
@@ -133,8 +157,8 @@ file.suffix = suffixonly
file.suffixesonly = suffixesonly
file.suffixes = suffixesonly
-file.dirname = pathpart -- obsolete
-file.extname = suffixonly -- obsolete
+file.dirname = pathpart -- obsolete
+file.extname = suffixonly -- obsolete
-- actually these are schemes
@@ -554,23 +578,6 @@ function file.collapsepath(str,anchor) -- anchor: false|nil, true, "."
end
end
--- better this way:
-
-local tricky = S("/\\") * P(-1)
-local attributes = lfs.attributes
-
-function lfs.isdir(name)
- if lpegmatch(tricky,name) then
- return attributes(name,"mode") == "directory"
- else
- return attributes(name.."/.","mode") == "directory"
- end
-end
-
-function lfs.isfile(name)
- return attributes(name,"mode") == "file"
-end
-
-- local function test(str,...)
-- print(string.format("%-20s %-15s %-30s %-20s",str,file.collapsepath(str),file.collapsepath(str,true),file.collapsepath(str,".")))
-- end
diff --git a/src/fontloader/misc/fontloader-l-io.lua b/src/fontloader/misc/fontloader-l-io.lua
index 020e811..a91d44d 100644
--- a/src/fontloader/misc/fontloader-l-io.lua
+++ b/src/fontloader/misc/fontloader-l-io.lua
@@ -339,11 +339,6 @@ function io.readstring(f,n,m)
return str
end
---
-
-if not io.i_limiter then function io.i_limiter() end end -- dummy so we can test safely
-if not io.o_limiter then function io.o_limiter() end end -- dummy so we can test safely
-
-- This works quite ok:
--
-- function io.piped(command,writer)
diff --git a/src/fontloader/misc/fontloader-l-lua.lua b/src/fontloader/misc/fontloader-l-lua.lua
index 9565f48..1a2a987 100644
--- a/src/fontloader/misc/fontloader-l-lua.lua
+++ b/src/fontloader/misc/fontloader-l-lua.lua
@@ -165,3 +165,14 @@ end
if lua then
lua.mask = load([[τεχ = 1]]) and "utf" or "ascii"
end
+
+local flush = io.flush
+
+if flush then
+
+ local execute = os.execute if execute then function os.execute(...) flush() return execute(...) end end
+ local exec = os.exec if exec then function os.exec (...) flush() return exec (...) end end
+ local spawn = os.spawn if spawn then function os.spawn (...) flush() return spawn (...) end end
+ local popen = io.popen if popen then function io.popen (...) flush() return popen (...) end end
+
+end
diff --git a/src/fontloader/misc/fontloader-l-table.lua b/src/fontloader/misc/fontloader-l-table.lua
index 3eb8b85..97e0441 100644
--- a/src/fontloader/misc/fontloader-l-table.lua
+++ b/src/fontloader/misc/fontloader-l-table.lua
@@ -49,9 +49,19 @@ function table.keys(t)
end
end
+-- local function compare(a,b)
+-- local ta, tb = type(a), type(b) -- needed, else 11 < 2
+-- if ta == tb then
+-- return a < b
+-- else
+-- return tostring(a) < tostring(b) -- not that efficient
+-- end
+-- end
+
local function compare(a,b)
- local ta, tb = type(a), type(b) -- needed, else 11 < 2
- if ta == tb then
+ local ta = type(a) -- needed, else 11 < 2
+ local tb = type(b) -- needed, else 11 < 2
+ if ta == tb and ta == "number" then
return a < b
else
return tostring(a) < tostring(b) -- not that efficient
@@ -469,7 +479,7 @@ local function do_serialize(root,name,depth,level,indexed)
end
end
-- we could check for k (index) being number (cardinal)
- if root and next(root) then
+ if root and next(root) ~= nil then
-- local first, last = nil, 0 -- #root cannot be trusted here (will be ok in 5.2 when ipairs is gone)
-- if compact then
-- -- NOT: for k=1,#root do (we need to quit at nil)
@@ -513,7 +523,7 @@ local function do_serialize(root,name,depth,level,indexed)
handle(format("%s %q,",depth,v))
end
elseif tv == "table" then
- if not next(v) then
+ if next(v) == nil then
handle(format("%s {},",depth))
elseif inline then -- and #t > 0
local st = simple_table(v)
@@ -597,7 +607,7 @@ local function do_serialize(root,name,depth,level,indexed)
end
end
elseif tv == "table" then
- if not next(v) then
+ if next(v) == nil then
if tk == "number" then
if hexify then
handle(format("%s [0x%X]={},",depth,k))
@@ -683,7 +693,7 @@ local function do_serialize(root,name,depth,level,indexed)
--~ end
end
end
- if level > 0 then
+ if level > 0 then
handle(format("%s},",depth))
end
end
@@ -748,7 +758,7 @@ local function serialize(_handle,root,name,specification) -- handle wins
root._w_h_a_t_e_v_e_r_ = nil
end
-- Let's forget about empty tables.
- if next(root) then
+ if next(root) ~= nil then
do_serialize(root,name,"",0)
end
end
@@ -928,7 +938,7 @@ local function sparse(old,nest,keeptables)
if not (v == "" or v == false) then
if nest and type(v) == "table" then
v = sparse(v,nest)
- if keeptables or next(v) then
+ if keeptables or next(v) ~= nil then
new[k] = v
end
else
@@ -1066,11 +1076,11 @@ end
-- slower than #t on indexed tables (#t only returns the size of the numerically indexed slice)
function table.is_empty(t)
- return not t or not next(t)
+ return not t or next(t) == nil
end
function table.has_one_entry(t)
- return t and not next(t,next(t))
+ return t and next(t,next(t)) == nil
end
-- new
@@ -1157,7 +1167,7 @@ function table.filtered(t,pattern,sort,cmp)
else
local n = next(t)
local function iterator()
- while n do
+ while n ~= nil do
local k = n
n = next(t,k)
if find(k,pattern) then
diff --git a/src/fontloader/misc/fontloader-util-str.lua b/src/fontloader/misc/fontloader-util-str.lua
index a040b01..a677a82 100644
--- a/src/fontloader/misc/fontloader-util-str.lua
+++ b/src/fontloader/misc/fontloader-util-str.lua
@@ -361,10 +361,10 @@ strings.tracers = tracedchars
function string.tracedchar(b)
-- todo: table
if type(b) == "number" then
- return tracedchars[b] or (utfchar(b) .. " (U+" .. format('%05X',b) .. ")")
+ return tracedchars[b] or (utfchar(b) .. " (U+" .. format("%05X",b) .. ")")
else
local c = utfbyte(b)
- return tracedchars[c] or (b .. " (U+" .. format('%05X',c) .. ")")
+ return tracedchars[c] or (b .. " (U+" .. (c and format("%05X",c) or "?????") .. ")")
end
end
diff --git a/src/fontloader/runtime/fontloader-basics-gen.lua b/src/fontloader/runtime/fontloader-basics-gen.lua
index e7cdc7b..c4d6536 100644
--- a/src/fontloader/runtime/fontloader-basics-gen.lua
+++ b/src/fontloader/runtime/fontloader-basics-gen.lua
@@ -15,8 +15,13 @@ local dummyfunction = function()
end
local dummyreporter = function(c)
- return function(...)
- (texio.reporter or texio.write_nl)(c .. " : " .. string.formatters(...))
+ return function(f,...)
+ local r = texio.reporter or texio.write_nl
+ if f then
+ r(c .. " : " .. string.formatters(f,...))
+ else
+ r("")
+ end
end
end
diff --git a/src/fontloader/runtime/fontloader-fontloader.lua b/src/fontloader/runtime/fontloader-fontloader.lua
index 96a7dd3..b662152 100644
--- a/src/fontloader/runtime/fontloader-fontloader.lua
+++ b/src/fontloader/runtime/fontloader-fontloader.lua
@@ -1,6 +1,6 @@
-- merged file : luatex-fonts-merged.lua
-- parent file : luatex-fonts.lua
--- merge date : 12/21/14 22:25:48
+-- merge date : 03/10/15 12:09:17
do -- begin closure to overcome local limits and interference
@@ -85,6 +85,13 @@ end
if lua then
lua.mask=load([[τεχ = 1]]) and "utf" or "ascii"
end
+local flush=io.flush
+if flush then
+ local execute=os.execute if execute then function os.execute(...) flush() return execute(...) end end
+ local exec=os.exec if exec then function os.exec (...) flush() return exec (...) end end
+ local spawn=os.spawn if spawn then function os.spawn (...) flush() return spawn (...) end end
+ local popen=io.popen if popen then function io.popen (...) flush() return popen (...) end end
+end
end -- closure
@@ -964,8 +971,9 @@ function table.keys(t)
end
end
local function compare(a,b)
- local ta,tb=type(a),type(b)
- if ta==tb then
+ local ta=type(a)
+ local tb=type(b)
+ if ta==tb and ta=="number" then
return a<b
else
return tostring(a)<tostring(b)
@@ -1288,7 +1296,7 @@ local function do_serialize(root,name,depth,level,indexed)
end
end
end
- if root and next(root) then
+ if root and next(root)~=nil then
local first,last=nil,0
if compact then
last=#root
@@ -1321,7 +1329,7 @@ local function do_serialize(root,name,depth,level,indexed)
handle(format("%s %q,",depth,v))
end
elseif tv=="table" then
- if not next(v) then
+ if next(v)==nil then
handle(format("%s {},",depth))
elseif inline then
local st=simple_table(v)
@@ -1405,7 +1413,7 @@ local function do_serialize(root,name,depth,level,indexed)
end
end
elseif tv=="table" then
- if not next(v) then
+ if next(v)==nil then
if tk=="number" then
if hexify then
handle(format("%s [0x%X]={},",depth,k))
@@ -1547,7 +1555,7 @@ local function serialize(_handle,root,name,specification)
local dummy=root._w_h_a_t_e_v_e_r_
root._w_h_a_t_e_v_e_r_=nil
end
- if next(root) then
+ if next(root)~=nil then
do_serialize(root,name,"",0)
end
end
@@ -1682,7 +1690,7 @@ local function sparse(old,nest,keeptables)
if not (v=="" or v==false) then
if nest and type(v)=="table" then
v=sparse(v,nest)
- if keeptables or next(v) then
+ if keeptables or next(v)~=nil then
new[k]=v
end
else
@@ -1799,10 +1807,10 @@ function table.sub(t,i,j)
return { unpack(t,i,j) }
end
function table.is_empty(t)
- return not t or not next(t)
+ return not t or next(t)==nil
end
function table.has_one_entry(t)
- return t and not next(t,next(t))
+ return t and next(t,next(t))==nil
end
function table.loweredkeys(t)
local l={}
@@ -1871,7 +1879,7 @@ function table.filtered(t,pattern,sort,cmp)
else
local n=next(t)
local function iterator()
- while n do
+ while n~=nil do
local k=n
n=next(t,k)
if find(k,pattern) then
@@ -2195,8 +2203,6 @@ function io.readstring(f,n,m)
local str=gsub(f:read(n),"\000","")
return str
end
-if not io.i_limiter then function io.i_limiter() end end
-if not io.o_limiter then function io.o_limiter() end end
end -- closure
@@ -2214,41 +2220,28 @@ local file=file
if not lfs then
lfs=optionalrequire("lfs")
end
-if not lfs then
- lfs={
- getcurrentdir=function()
- return "."
- end,
- attributes=function()
- return nil
- end,
- isfile=function(name)
- local f=io.open(name,'rb')
- if f then
- f:close()
- return true
- end
- end,
- isdir=function(name)
- print("you need to load lfs")
- return false
- end
- }
-elseif not lfs.isfile then
- local attributes=lfs.attributes
- function lfs.isdir(name)
- return attributes(name,"mode")=="directory"
- end
- function lfs.isfile(name)
- return attributes(name,"mode")=="file"
- end
-end
local insert,concat=table.insert,table.concat
local match,find,gmatch=string.match,string.find,string.gmatch
local lpegmatch=lpeg.match
local getcurrentdir,attributes=lfs.currentdir,lfs.attributes
local checkedsplit=string.checkedsplit
local P,R,S,C,Cs,Cp,Cc,Ct=lpeg.P,lpeg.R,lpeg.S,lpeg.C,lpeg.Cs,lpeg.Cp,lpeg.Cc,lpeg.Ct
+local tricky=S("/\\")*P(-1)
+local attributes=lfs.attributes
+if sandbox then
+ sandbox.redefine(lfs.isfile,"lfs.isfile")
+ sandbox.redefine(lfs.isdir,"lfs.isdir")
+end
+function lfs.isdir(name)
+ if lpegmatch(tricky,name) then
+ return attributes(name,"mode")=="directory"
+ else
+ return attributes(name.."/.","mode")=="directory"
+ end
+end
+function lfs.isfile(name)
+ return attributes(name,"mode")=="file"
+end
local colon=P(":")
local period=P(".")
local periods=P("..")
@@ -2535,18 +2528,6 @@ function file.collapsepath(str,anchor)
end
end
end
-local tricky=S("/\\")*P(-1)
-local attributes=lfs.attributes
-function lfs.isdir(name)
- if lpegmatch(tricky,name) then
- return attributes(name,"mode")=="directory"
- else
- return attributes(name.."/.","mode")=="directory"
- end
-end
-function lfs.isfile(name)
- return attributes(name,"mode")=="file"
-end
local validchars=R("az","09","AZ","--","..")
local pattern_a=lpeg.replacer(1-validchars)
local pattern_a=Cs((validchars+P(1)/"-")^1)
@@ -2874,10 +2855,10 @@ string.tracedchars=tracedchars
strings.tracers=tracedchars
function string.tracedchar(b)
if type(b)=="number" then
- return tracedchars[b] or (utfchar(b).." (U+"..format('%05X',b)..")")
+ return tracedchars[b] or (utfchar(b).." (U+"..format("%05X",b)..")")
else
local c=utfbyte(b)
- return tracedchars[c] or (b.." (U+"..format('%05X',c)..")")
+ return tracedchars[c] or (b.." (U+"..(c and format("%05X",c) or "?????")..")")
end
end
function number.signed(i)
@@ -3393,8 +3374,13 @@ end
local dummyfunction=function()
end
local dummyreporter=function(c)
- return function(...)
- (texio.reporter or texio.write_nl)(c.." : "..string.formatters(...))
+ return function(f,...)
+ local r=texio.reporter or texio.write_nl
+ if f then
+ r(c.." : "..string.formatters(f,...))
+ else
+ r("")
+ end
end
end
statistics={
@@ -3981,7 +3967,7 @@ fonts.analyzers={}
fonts.readers={}
fonts.definers={ methods={} }
fonts.loggers={ register=function() end }
-fontloader.totable=fontloader.to_table
+fontloader.totable=fontloader.to_table
end -- closure
@@ -5813,13 +5799,13 @@ local function read_from_tfm(specification)
properties.filename=specification.filename
properties.format=fonts.formats.tfm
parameters.size=size
- shared.rawdata={}
- shared.features=features
- shared.processes=next(features) and tfm.setfeatures(tfmdata,features) or nil
tfmdata.properties=properties
tfmdata.resources=resources
tfmdata.parameters=parameters
tfmdata.shared=shared
+ shared.rawdata={}
+ shared.features=features
+ shared.processes=next(features) and tfm.setfeatures(tfmdata,features) or nil
parameters.slant=parameters.slant or parameters[1] or 0
parameters.space=parameters.space or parameters[2] or 0
parameters.space_stretch=parameters.space_stretch or parameters[3] or 0
@@ -5915,6 +5901,10 @@ local findbinfile=resolvers.findbinfile
local definers=fonts.definers
local readers=fonts.readers
local constructors=fonts.constructors
+local fontloader=fontloader
+local font_to_table=fontloader.to_table
+local open_font=fontloader.open
+local close_font=fontloader.close
local afm=constructors.newhandler("afm")
local pfb=constructors.newhandler("pfb")
local afmfeatures=constructors.newfeatures("afm")
@@ -6030,10 +6020,10 @@ local function get_variables(data,fontmetrics)
end
local function get_indexes(data,pfbname)
data.resources.filename=resolvers.unresolve(pfbname)
- local pfbblob=fontloader.open(pfbname)
+ local pfbblob=open_font(pfbname)
if pfbblob then
local characters=data.characters
- local pfbdata=fontloader.to_table(pfbblob)
+ local pfbdata=font_to_table(pfbblob)
if pfbdata then
local glyphs=pfbdata.glyphs
if glyphs then
@@ -6058,7 +6048,7 @@ local function get_indexes(data,pfbname)
elseif trace_loading then
report_afm("no data in pfb file %a",pfbname)
end
- fontloader.close(pfbblob)
+ close_font(pfbblob)
elseif trace_loading then
report_afm("invalid pfb file %a",pfbname)
end
@@ -7072,13 +7062,14 @@ local report_otf=logs.reporter("fonts","otf loading")
local fonts=fonts
local otf=fonts.handlers.otf
otf.glists={ "gsub","gpos" }
-otf.version=2.802
+otf.version=2.803
otf.cache=containers.define("fonts","otf",otf.version,true)
-local fontdata=fonts.hashes.identifiers
-local chardata=characters and characters.data
+local hashes=fonts.hashes
local definers=fonts.definers
local readers=fonts.readers
local constructors=fonts.constructors
+local fontdata=hashes and hashes.identifiers
+local chardata=characters and characters.data
local otffeatures=constructors.newfeatures("otf")
local registerotffeature=otffeatures.register
local enhancers=allocate()
@@ -7095,7 +7086,11 @@ local overloadkerns=false
local applyruntimefixes=fonts.treatments and fonts.treatments.applyfixes
local wildcard="*"
local default="dflt"
-local fontloaderfields=fontloader.fields
+local fontloader=fontloader
+local open_font=fontloader.open
+local close_font=fontloader.close
+local font_fields=fontloader.fields
+local apply_featurefile=fontloader.apply_featurefile
local mainfields=nil
local glyphfields=nil
local formats=fonts.formats
@@ -7136,7 +7131,7 @@ local function load_featurefile(raw,featurefile)
if trace_loading then
report_otf("using featurefile %a",featurefile)
end
- fontloader.apply_featurefile(raw,featurefile)
+ apply_featurefile(raw,featurefile)
end
end
local function showfeatureorder(rawdata,filename)
@@ -7387,12 +7382,12 @@ function otf.load(filename,sub,featurefile)
report_otf("loading %a, hash %a",filename,hash)
local fontdata,messages
if sub then
- fontdata,messages=fontloader.open(filename,sub)
+ fontdata,messages=open_font(filename,sub)
else
- fontdata,messages=fontloader.open(filename)
+ fontdata,messages=open_font(filename)
end
if fontdata then
- mainfields=mainfields or (fontloaderfields and fontloaderfields(fontdata))
+ mainfields=mainfields or (font_fields and font_fields(fontdata))
end
if trace_loading and messages and #messages>0 then
if type(messages)=="string" then
@@ -7466,7 +7461,7 @@ function otf.load(filename,sub,featurefile)
report_otf("preprocessing and caching time %s, packtime %s",
elapsedtime(data),packdata and elapsedtime(packtime) or 0)
end
- fontloader.close(fontdata)
+ close_font(fontdata)
if cleanup>3 then
collectgarbage("collect")
end
@@ -9850,9 +9845,9 @@ if not modules then modules={} end modules ['font-inj']={
if not nodes.properties then return end
local next,rawget=next,rawget
local utfchar=utf.char
+local fastcopy=table.fastcopy
local trace_injections=false trackers.register("fonts.injections",function(v) trace_injections=v end)
local report_injections=logs.reporter("fonts","injections")
-report_injections("using experimental injector")
local attributes,nodes,node=attributes,nodes,node
fonts=fonts
local fontdata=fonts.hashes.identifiers
@@ -9899,15 +9894,36 @@ function injections.resetcounts()
keepregisteredcounts=false
end
function injections.reset(n)
- local p=rawget(properties,start)
- if p and p.injections then
- p.injections=nil
+ local p=rawget(properties,n)
+ if p and rawget(p,"injections") then
+ p.injections=nil
+ end
+end
+function injections.copy(target,source)
+ local sp=rawget(properties,source)
+ if sp then
+ local tp=rawget(properties,target)
+ local si=rawget(sp,"injections")
+ if si then
+ si=fastcopy(si)
+ if tp then
+ tp.injections=si
+ else
+ propertydata[target]={
+ injections=si,
+ }
+ end
+ else
+ if tp then
+ tp.injections=nil
+ end
+ end
end
end
function injections.setligaindex(n,index)
local p=rawget(properties,n)
if p then
- local i=p.injections
+ local i=rawget(p,"injections")
if i then
i.ligaindex=index
else
@@ -9926,9 +9942,9 @@ end
function injections.getligaindex(n,default)
local p=rawget(properties,n)
if p then
- p=p.injections
- if p then
- return p.ligaindex or default
+ local i=rawget(p,"injections")
+ if i then
+ return i.ligaindex or default
end
end
return default
@@ -9945,7 +9961,7 @@ function injections.setcursive(start,nxt,factor,rlmode,exit,entry,tfmstart,tfmne
end
local p=rawget(properties,start)
if p then
- local i=p.injections
+ local i=rawget(p,"injections")
if i then
i.cursiveanchor=true
else
@@ -9962,7 +9978,7 @@ function injections.setcursive(start,nxt,factor,rlmode,exit,entry,tfmstart,tfmne
end
local p=rawget(properties,nxt)
if p then
- local i=p.injections
+ local i=rawget(p,"injections")
if i then
i.cursivex=dx
i.cursivey=dy
@@ -9995,14 +10011,16 @@ function injections.setpair(current,factor,rlmode,r2lflag,spec,injection)
end
local p=rawget(properties,current)
if p then
- local i=p.injections
+ local i=rawget(p,"injections")
if i then
- if leftkern~=0 or rightkern~=0 then
- i.leftkern=i.leftkern or 0+leftkern
- i.rightkern=i.rightkern or 0+rightkern
+ if leftkern~=0 then
+ i.leftkern=(i.leftkern or 0)+leftkern
+ end
+ if rightkern~=0 then
+ i.rightkern=(i.rightkern or 0)+rightkern
end
if yoffset~=0 then
- i.yoffset=i.yoffset or 0+yoffset
+ i.yoffset=(i.yoffset or 0)+yoffset
end
elseif leftkern~=0 or rightkern~=0 then
p.injections={
@@ -10044,9 +10062,9 @@ function injections.setkern(current,factor,rlmode,x,injection)
injection="injections"
end
if p then
- local i=p[injection]
+ local i=rawget(p,injection)
if i then
- i.leftkern=dx+i.leftkern or 0
+ i.leftkern=dx+(i.leftkern or 0)
else
p[injection]={
leftkern=dx,
@@ -10072,7 +10090,7 @@ function injections.setmark(start,base,factor,rlmode,ba,ma,tfmbase)
end
local p=rawget(properties,start)
if p then
- local i=p.injections
+ local i=rawget(p,"injections")
if i then
i.markx=dx
i.marky=dy
@@ -10112,18 +10130,18 @@ local function show(n,what,nested,symbol)
if n then
local p=rawget(properties,n)
if p then
- local p=p[what]
- if p then
- local leftkern=p.leftkern or 0
- local rightkern=p.rightkern or 0
- local yoffset=p.yoffset or 0
- local markx=p.markx or 0
- local marky=p.marky or 0
- local markdir=p.markdir or 0
- local markbase=p.markbase or 0
- local cursivex=p.cursivex or 0
- local cursivey=p.cursivey or 0
- local ligaindex=p.ligaindex or 0
+ local i=rawget(p,what)
+ if i then
+ local leftkern=i.leftkern or 0
+ local rightkern=i.rightkern or 0
+ local yoffset=i.yoffset or 0
+ local markx=i.markx or 0
+ local marky=i.marky or 0
+ local markdir=i.markdir or 0
+ local markbase=i.markbase or 0
+ local cursivex=i.cursivex or 0
+ local cursivey=i.cursivey or 0
+ local ligaindex=i.ligaindex or 0
local margin=nested and 4 or 2
if rightkern~=0 or yoffset~=0 then
report_injections("%w%s pair: lx %p, rx %p, dy %p",margin,symbol,leftkern,rightkern,yoffset)
@@ -10151,9 +10169,9 @@ local function showsub(n,what,where)
end
report_injections("end subrun")
end
-local function trace(head)
- report_injections("begin run: %s kerns, %s pairs, %s marks and %s cursives registered",
- nofregisteredkerns,nofregisteredpairs,nofregisteredmarks,nofregisteredcursives)
+local function trace(head,where)
+ report_injections("begin run %s: %s kerns, %s pairs, %s marks and %s cursives registered",
+ where or "",nofregisteredkerns,nofregisteredpairs,nofregisteredmarks,nofregisteredcursives)
local n=head
while n do
local id=getid(n)
@@ -10206,10 +10224,6 @@ local function collect_glyphs_1(head)
local nf,tm=nil,nil
for n in traverse_id(glyph_code,head) do
if getsubtype(n)<256 then
- local pn=rawget(properties,n)
- if pn then
- pn=pn.injections
- end
local f=getfont(n)
if f~=nf then
nf=f
@@ -10222,10 +10236,14 @@ local function collect_glyphs_1(head)
nofglyphs=nofglyphs+1
glyphs[nofglyphs]=n
end
- if pn then
- local yoffset=pn.yoffset
- if yoffset and yoffset~=0 then
- setfield(n,"yoffset",yoffset)
+ local p=rawget(properties,n)
+ if p then
+ local i=rawget(p,"injections")
+ if i then
+ local yoffset=i.yoffset
+ if yoffset and yoffset~=0 then
+ setfield(n,"yoffset",yoffset)
+ end
end
end
end
@@ -10259,20 +10277,30 @@ local function inject_marks(marks,nofmarks)
local n=marks[i]
local pn=rawget(properties,n)
if pn then
- pn=pn.injections
- end
- if pn then
+ pn=rawget(pn,"injections")
+ if pn then
local p=pn.markbasenode
if p then
local px=getfield(p,"xoffset")
local ox=0
+ local rightkern=nil
local pp=rawget(properties,p)
- local rightkern=pp and pp.rightkern
+ if pp then
+ pp=rawget(pp,"injections")
+ if pp then
+ rightkern=pp.rightkern
+ end
+ end
if rightkern then
if pn.markdir<0 then
ox=px-pn.markx-rightkern
else
- ox=px-pn.markx-pp.leftkern
+ local leftkern=pp.leftkern
+ if leftkern then
+ ox=px-pn.markx
+ else
+ ox=px-pn.markx-leftkern
+ end
end
else
ox=px-pn.markx
@@ -10293,6 +10321,7 @@ local function inject_marks(marks,nofmarks)
setfield(n,"yoffset",oy)
else
end
+ end
end
end
end
@@ -10303,14 +10332,14 @@ local function inject_cursives(glyphs,nofglyphs)
local n=glyphs[i]
local pn=rawget(properties,n)
if pn then
- pn=pn.injections
+ pn=rawget(pn,"injections")
end
if pn then
local cursivex=pn.cursivex
if cursivex then
if cursiveanchor then
if cursivex~=0 then
- pn.leftkern=pn.leftkern or 0+cursivex
+ pn.leftkern=(pn.leftkern or 0)+cursivex
end
if lastanchor then
if maxc==0 then
@@ -10374,16 +10403,16 @@ local function inject_kerns(head,glyphs,nofglyphs)
local n=glyphs[i]
local pn=rawget(properties,n)
if pn then
- pn=pn.injections
- end
- if pn then
- local leftkern=pn.leftkern
- if leftkern~=0 then
- insert_node_before(head,n,newkern(leftkern))
- end
- local rightkern=pn.rightkern
- if rightkern and rightkern~=0 then
- insert_node_after(head,n,newkern(rightkern))
+ local i=rawget(pn,"injections")
+ if i then
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ insert_node_before(head,n,newkern(leftkern))
+ end
+ local rightkern=i.rightkern
+ if rightkern and rightkern~=0 then
+ insert_node_after(head,n,newkern(rightkern))
+ end
end
end
end
@@ -10391,7 +10420,7 @@ end
local function inject_everything(head,where)
head=tonut(head)
if trace_injections then
- trace(head)
+ trace(head,"everything")
end
local glyphs,nofglyphs,marks,nofmarks
if nofregisteredpairs>0 then
@@ -10403,7 +10432,7 @@ local function inject_everything(head,where)
if nofregisteredcursives>0 then
inject_cursives(glyphs,nofglyphs)
end
- if nofregisteredmarks>0 then
+ if nofregisteredmarks>0 then
inject_marks(marks,nofmarks)
end
inject_kerns(head,glyphs,nofglyphs)
@@ -10421,7 +10450,7 @@ end
local function inject_kerns_only(head,where)
head=tonut(head)
if trace_injections then
- trace(head)
+ trace(head,"kerns")
end
local n=head
local p=nil
@@ -10434,10 +10463,10 @@ local function inject_kerns_only(head,where)
if p then
local d=getfield(p,"post")
if d then
- local pn=pn.postinjections
- if pn then
- local leftkern=pn.leftkern
- if leftkern~=0 then
+ local i=rawget(pn,"postinjections")
+ if i then
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
local t=find_tail(d)
insert_node_after(d,t,newkern(leftkern))
end
@@ -10445,28 +10474,28 @@ local function inject_kerns_only(head,where)
end
local d=getfield(p,"replace")
if d then
- local pn=pn.replaceinjections
- if pn then
- local leftkern=pn.leftkern
- if leftkern~=0 then
+ local i=rawget(pn,"replaceinjections")
+ if i then
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
local t=find_tail(d)
insert_node_after(d,t,newkern(leftkern))
end
end
else
- local pn=pn.injections
- if pn then
- local leftkern=pn.leftkern
- if leftkern~=0 then
+ local i=rawget(pn,"injections")
+ if i then
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
setfield(p,"replace",newkern(leftkern))
end
end
end
else
- local pn=pn.injections
- if pn then
- local leftkern=pn.leftkern
- if leftkern~=0 then
+ local i=rawget(pn,"injections")
+ if i then
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
head=insert_node_before(head,n,newkern(leftkern))
end
end
@@ -10484,12 +10513,12 @@ local function inject_kerns_only(head,where)
if getsubtype(n)<256 then
local pn=rawget(properties,n)
if pn then
- pn=pn.preinjections
- end
- if pn then
- local leftkern=pn.leftkern
- if leftkern~=0 then
- h=insert_node_before(h,n,newkern(leftkern))
+ local i=rawget(pn,"preinjections")
+ if i then
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ h=insert_node_before(h,n,newkern(leftkern))
+ end
end
end
else
@@ -10507,12 +10536,12 @@ local function inject_kerns_only(head,where)
if getsubtype(n)<256 then
local pn=rawget(properties,n)
if pn then
- pn=pn.postinjections
- end
- if pn then
- local leftkern=pn.leftkern
- if leftkern~=0 then
- h=insert_node_before(h,n,newkern(leftkern))
+ local i=rawget(pn,"postinjections")
+ if i then
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ h=insert_node_before(h,n,newkern(leftkern))
+ end
end
end
else
@@ -10530,12 +10559,12 @@ local function inject_kerns_only(head,where)
if getsubtype(n)<256 then
local pn=rawget(properties,n)
if pn then
- pn=pn.replaceinjections
- end
- if pn then
- local leftkern=pn.leftkern
- if leftkern~=0 then
- h=insert_node_before(h,n,newkern(leftkern))
+ local i=rawget(pn,"replaceinjections")
+ if i then
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ h=insert_node_before(h,n,newkern(leftkern))
+ end
end
end
else
@@ -10562,7 +10591,7 @@ end
local function inject_pairs_only(head,where)
head=tonut(head)
if trace_injections then
- trace(head)
+ trace(head,"pairs")
end
local n=head
local p=nil
@@ -10575,10 +10604,10 @@ local function inject_pairs_only(head,where)
if p then
local d=getfield(p,"post")
if d then
- local pn=pn.postinjections
- if pn then
- local leftkern=pn.leftkern
- if leftkern~=0 then
+ local i=rawget(pn,"postinjections")
+ if i then
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
local t=find_tail(d)
insert_node_after(d,t,newkern(leftkern))
end
@@ -10586,35 +10615,35 @@ local function inject_pairs_only(head,where)
end
local d=getfield(p,"replace")
if d then
- local pn=pn.replaceinjections
- if pn then
- local leftkern=pn.leftkern
- if leftkern~=0 then
+ local i=rawget(pn,"replaceinjections")
+ if i then
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
local t=find_tail(d)
insert_node_after(d,t,newkern(leftkern))
end
end
else
- local pn=pn.injections
- if pn then
- local leftkern=pn.leftkern
- if leftkern~=0 then
+ local i=rawget(pn,"injections")
+ if i then
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
setfield(p,"replace",newkern(leftkern))
end
end
end
else
- local pn=pn.injections
- if pn then
- local yoffset=pn.yoffset
+ local i=rawget(pn,"injections")
+ if i then
+ local yoffset=i.yoffset
if yoffset and yoffset~=0 then
setfield(n,"yoffset",yoffset)
end
- local leftkern=pn.leftkern
- if leftkern~=0 then
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
insert_node_before(head,n,newkern(leftkern))
end
- local rightkern=pn.rightkern
+ local rightkern=i.rightkern
if rightkern and rightkern~=0 then
insert_node_after(head,n,newkern(rightkern))
n=getnext(n)
@@ -10632,23 +10661,23 @@ local function inject_pairs_only(head,where)
local h=d
for n in traverse_id(glyph_code,d) do
if getsubtype(n)<256 then
- local pn=rawget(properties,n)
- if pn then
- pn=pn.preinjections
- end
- if pn then
- local yoffset=pn.yoffset
- if yoffset and yoffset~=0 then
- setfield(n,"yoffset",yoffset)
- end
- local leftkern=pn.leftkern
- if leftkern~=0 then
- h=insert_node_before(h,n,newkern(leftkern))
- end
- local rightkern=pn.rightkern
- if rightkern and rightkern~=0 then
- insert_node_after(head,n,newkern(rightkern))
- n=getnext(n)
+ local p=rawget(properties,n)
+ if p then
+ local i=rawget(p,"preinjections")
+ if i then
+ local yoffset=i.yoffset
+ if yoffset and yoffset~=0 then
+ setfield(n,"yoffset",yoffset)
+ end
+ local leftkern=i.leftkern
+ if leftkern~=0 then
+ h=insert_node_before(h,n,newkern(leftkern))
+ end
+ local rightkern=i.rightkern
+ if rightkern and rightkern~=0 then
+ insert_node_after(head,n,newkern(rightkern))
+ n=getnext(n)
+ end
end
end
else
@@ -10664,23 +10693,23 @@ local function inject_pairs_only(head,where)
local h=d
for n in traverse_id(glyph_code,d) do
if getsubtype(n)<256 then
- local pn=rawget(properties,n)
- if pn then
- pn=pn.postinjections
- end
- if pn then
- local yoffset=pn.yoffset
- if yoffset and yoffset~=0 then
- setfield(n,"yoffset",yoffset)
- end
- local leftkern=pn.leftkern
- if leftkern~=0 then
- h=insert_node_before(h,n,newkern(leftkern))
- end
- local rightkern=pn.rightkern
- if rightkern and rightkern~=0 then
- insert_node_after(head,n,newkern(rightkern))
- n=getnext(n)
+ local p=rawget(properties,n)
+ if p then
+ local i=rawget(p,"postinjections")
+ if i then
+ local yoffset=i.yoffset
+ if yoffset and yoffset~=0 then
+ setfield(n,"yoffset",yoffset)
+ end
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ h=insert_node_before(h,n,newkern(leftkern))
+ end
+ local rightkern=i.rightkern
+ if rightkern and rightkern~=0 then
+ insert_node_after(head,n,newkern(rightkern))
+ n=getnext(n)
+ end
end
end
else
@@ -10696,23 +10725,23 @@ local function inject_pairs_only(head,where)
local h=d
for n in traverse_id(glyph_code,d) do
if getsubtype(n)<256 then
- local pn=rawget(properties,n)
- if pn then
- pn=pn.replaceinjections
- end
- if pn then
- local yoffset=pn.yoffset
- if yoffset and yoffset~=0 then
- setfield(n,"yoffset",yoffset)
- end
- local leftkern=pn.leftkern
- if leftkern~=0 then
- h=insert_node_before(h,n,newkern(leftkern))
- end
- local rightkern=pn.rightkern
- if rightkern and rightkern~=0 then
- insert_node_after(head,n,newkern(rightkern))
- n=getnext(n)
+ local p=rawget(properties,n)
+ if p then
+ local i=rawget(pn,"replaceinjections")
+ if i then
+ local yoffset=i.yoffset
+ if yoffset and yoffset~=0 then
+ setfield(n,"yoffset",yoffset)
+ end
+ local leftkern=i.leftkern
+ if leftkern and leftkern~=0 then
+ h=insert_node_before(h,n,newkern(leftkern))
+ end
+ local rightkern=i.rightkern
+ if rightkern and rightkern~=0 then
+ insert_node_after(head,n,newkern(rightkern))
+ n=getnext(n)
+ end
end
end
else
@@ -11224,6 +11253,7 @@ local setcursive=injections.setcursive
local setkern=injections.setkern
local setpair=injections.setpair
local resetinjection=injections.reset
+local copyinjection=injections.copy
local setligaindex=injections.setligaindex
local getligaindex=injections.getligaindex
local cursonce=true
@@ -11306,10 +11336,13 @@ local function copy_glyph(g)
if components then
setfield(g,"components",nil)
local n=copy_node(g)
+ copyinjection(n,g)
setfield(g,"components",components)
return n
else
- return copy_node(g)
+ local n=copy_node(g)
+ copyinjection(n,g)
+ return n
end
end
local function markstoligature(kind,lookupname,head,start,stop,char)
@@ -15094,13 +15127,14 @@ function nodes.handlers.nodepass(head)
if basepass and #basefonts>0 then
for i=1,#basefonts do
local range=basefonts[i]
- local start,stop=range[1],range[2]
+ local start=range[1]
+ local stop=range[2]
if stop then
- ligaturing(start,stop)
- kerning(start,stop)
- else
- ligaturing(start)
- kerning(start)
+ start,stop=ligaturing(start,stop)
+ start,stop=kerning(start,stop)
+ elseif start then
+ start=ligaturing(start)
+ start=kerning(start)
end
end
end
diff --git a/src/fontloader/runtime/fontloader-tl2014.lua b/src/fontloader/runtime/fontloader-tl2014.lua
new file mode 100644
index 0000000..12b68a5
--- /dev/null
+++ b/src/fontloader/runtime/fontloader-tl2014.lua
@@ -0,0 +1,13936 @@
+-- merged file : luatex-fonts-merged.lua
+-- parent file : luatex-fonts.lua
+-- merge date : 07/29/14 00:30:11
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['l-lua']={
+ version=1.001,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local major,minor=string.match(_VERSION,"^[^%d]+(%d+)%.(%d+).*$")
+_MAJORVERSION=tonumber(major) or 5
+_MINORVERSION=tonumber(minor) or 1
+_LUAVERSION=_MAJORVERSION+_MINORVERSION/10
+if not lpeg then
+ lpeg=require("lpeg")
+end
+if loadstring then
+ local loadnormal=load
+ function load(first,...)
+ if type(first)=="string" then
+ return loadstring(first,...)
+ else
+ return loadnormal(first,...)
+ end
+ end
+else
+ loadstring=load
+end
+if not ipairs then
+ local function iterate(a,i)
+ i=i+1
+ local v=a[i]
+ if v~=nil then
+ return i,v
+ end
+ end
+ function ipairs(a)
+ return iterate,a,0
+ end
+end
+if not pairs then
+ function pairs(t)
+ return next,t
+ end
+end
+if not table.unpack then
+ table.unpack=_G.unpack
+elseif not unpack then
+ _G.unpack=table.unpack
+end
+if not package.loaders then
+ package.loaders=package.searchers
+end
+local print,select,tostring=print,select,tostring
+local inspectors={}
+function setinspector(inspector)
+ inspectors[#inspectors+1]=inspector
+end
+function inspect(...)
+ for s=1,select("#",...) do
+ local value=select(s,...)
+ local done=false
+ for i=1,#inspectors do
+ done=inspectors[i](value)
+ if done then
+ break
+ end
+ end
+ if not done then
+ print(tostring(value))
+ end
+ end
+end
+local dummy=function() end
+function optionalrequire(...)
+ local ok,result=xpcall(require,dummy,...)
+ if ok then
+ return result
+ end
+end
+if lua then
+ lua.mask=load([[τεχ = 1]]) and "utf" or "ascii"
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['l-lpeg']={
+ version=1.001,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+lpeg=require("lpeg")
+if not lpeg.print then function lpeg.print(...) print(lpeg.pcode(...)) end end
+local type,next,tostring=type,next,tostring
+local byte,char,gmatch,format=string.byte,string.char,string.gmatch,string.format
+local floor=math.floor
+local P,R,S,V,Ct,C,Cs,Cc,Cp,Cmt=lpeg.P,lpeg.R,lpeg.S,lpeg.V,lpeg.Ct,lpeg.C,lpeg.Cs,lpeg.Cc,lpeg.Cp,lpeg.Cmt
+local lpegtype,lpegmatch,lpegprint=lpeg.type,lpeg.match,lpeg.print
+if setinspector then
+ setinspector(function(v) if lpegtype(v) then lpegprint(v) return true end end)
+end
+lpeg.patterns=lpeg.patterns or {}
+local patterns=lpeg.patterns
+local anything=P(1)
+local endofstring=P(-1)
+local alwaysmatched=P(true)
+patterns.anything=anything
+patterns.endofstring=endofstring
+patterns.beginofstring=alwaysmatched
+patterns.alwaysmatched=alwaysmatched
+local sign=S('+-')
+local zero=P('0')
+local digit=R('09')
+local octdigit=R("07")
+local lowercase=R("az")
+local uppercase=R("AZ")
+local underscore=P("_")
+local hexdigit=digit+lowercase+uppercase
+local cr,lf,crlf=P("\r"),P("\n"),P("\r\n")
+local newline=P("\r")*(P("\n")+P(true))+P("\n")
+local escaped=P("\\")*anything
+local squote=P("'")
+local dquote=P('"')
+local space=P(" ")
+local period=P(".")
+local comma=P(",")
+local utfbom_32_be=P('\000\000\254\255')
+local utfbom_32_le=P('\255\254\000\000')
+local utfbom_16_be=P('\254\255')
+local utfbom_16_le=P('\255\254')
+local utfbom_8=P('\239\187\191')
+local utfbom=utfbom_32_be+utfbom_32_le+utfbom_16_be+utfbom_16_le+utfbom_8
+local utftype=utfbom_32_be*Cc("utf-32-be")+utfbom_32_le*Cc("utf-32-le")+utfbom_16_be*Cc("utf-16-be")+utfbom_16_le*Cc("utf-16-le")+utfbom_8*Cc("utf-8")+alwaysmatched*Cc("utf-8")
+local utfstricttype=utfbom_32_be*Cc("utf-32-be")+utfbom_32_le*Cc("utf-32-le")+utfbom_16_be*Cc("utf-16-be")+utfbom_16_le*Cc("utf-16-le")+utfbom_8*Cc("utf-8")
+local utfoffset=utfbom_32_be*Cc(4)+utfbom_32_le*Cc(4)+utfbom_16_be*Cc(2)+utfbom_16_le*Cc(2)+utfbom_8*Cc(3)+Cc(0)
+local utf8next=R("\128\191")
+patterns.utfbom_32_be=utfbom_32_be
+patterns.utfbom_32_le=utfbom_32_le
+patterns.utfbom_16_be=utfbom_16_be
+patterns.utfbom_16_le=utfbom_16_le
+patterns.utfbom_8=utfbom_8
+patterns.utf_16_be_nl=P("\000\r\000\n")+P("\000\r")+P("\000\n")
+patterns.utf_16_le_nl=P("\r\000\n\000")+P("\r\000")+P("\n\000")
+patterns.utf8one=R("\000\127")
+patterns.utf8two=R("\194\223")*utf8next
+patterns.utf8three=R("\224\239")*utf8next*utf8next
+patterns.utf8four=R("\240\244")*utf8next*utf8next*utf8next
+patterns.utfbom=utfbom
+patterns.utftype=utftype
+patterns.utfstricttype=utfstricttype
+patterns.utfoffset=utfoffset
+local utf8char=patterns.utf8one+patterns.utf8two+patterns.utf8three+patterns.utf8four
+local validutf8char=utf8char^0*endofstring*Cc(true)+Cc(false)
+local utf8character=P(1)*R("\128\191")^0
+patterns.utf8=utf8char
+patterns.utf8char=utf8char
+patterns.utf8character=utf8character
+patterns.validutf8=validutf8char
+patterns.validutf8char=validutf8char
+local eol=S("\n\r")
+local spacer=S(" \t\f\v")
+local whitespace=eol+spacer
+local nonspacer=1-spacer
+local nonwhitespace=1-whitespace
+patterns.eol=eol
+patterns.spacer=spacer
+patterns.whitespace=whitespace
+patterns.nonspacer=nonspacer
+patterns.nonwhitespace=nonwhitespace
+local stripper=spacer^0*C((spacer^0*nonspacer^1)^0)
+local fullstripper=whitespace^0*C((whitespace^0*nonwhitespace^1)^0)
+local collapser=Cs(spacer^0/""*nonspacer^0*((spacer^0/" "*nonspacer^1)^0))
+patterns.stripper=stripper
+patterns.fullstripper=fullstripper
+patterns.collapser=collapser
+patterns.lowercase=lowercase
+patterns.uppercase=uppercase
+patterns.letter=patterns.lowercase+patterns.uppercase
+patterns.space=space
+patterns.tab=P("\t")
+patterns.spaceortab=patterns.space+patterns.tab
+patterns.newline=newline
+patterns.emptyline=newline^1
+patterns.equal=P("=")
+patterns.comma=comma
+patterns.commaspacer=comma*spacer^0
+patterns.period=period
+patterns.colon=P(":")
+patterns.semicolon=P(";")
+patterns.underscore=underscore
+patterns.escaped=escaped
+patterns.squote=squote
+patterns.dquote=dquote
+patterns.nosquote=(escaped+(1-squote))^0
+patterns.nodquote=(escaped+(1-dquote))^0
+patterns.unsingle=(squote/"")*patterns.nosquote*(squote/"")
+patterns.undouble=(dquote/"")*patterns.nodquote*(dquote/"")
+patterns.unquoted=patterns.undouble+patterns.unsingle
+patterns.unspacer=((patterns.spacer^1)/"")^0
+patterns.singlequoted=squote*patterns.nosquote*squote
+patterns.doublequoted=dquote*patterns.nodquote*dquote
+patterns.quoted=patterns.doublequoted+patterns.singlequoted
+patterns.digit=digit
+patterns.octdigit=octdigit
+patterns.hexdigit=hexdigit
+patterns.sign=sign
+patterns.cardinal=digit^1
+patterns.integer=sign^-1*digit^1
+patterns.unsigned=digit^0*period*digit^1
+patterns.float=sign^-1*patterns.unsigned
+patterns.cunsigned=digit^0*comma*digit^1
+patterns.cpunsigned=digit^0*(period+comma)*digit^1
+patterns.cfloat=sign^-1*patterns.cunsigned
+patterns.cpfloat=sign^-1*patterns.cpunsigned
+patterns.number=patterns.float+patterns.integer
+patterns.cnumber=patterns.cfloat+patterns.integer
+patterns.cpnumber=patterns.cpfloat+patterns.integer
+patterns.oct=zero*octdigit^1
+patterns.octal=patterns.oct
+patterns.HEX=zero*P("X")*(digit+uppercase)^1
+patterns.hex=zero*P("x")*(digit+lowercase)^1
+patterns.hexadecimal=zero*S("xX")*hexdigit^1
+patterns.hexafloat=sign^-1*zero*S("xX")*(hexdigit^0*period*hexdigit^1+hexdigit^1*period*hexdigit^0+hexdigit^1)*(S("pP")*sign^-1*hexdigit^1)^-1
+patterns.decafloat=sign^-1*(digit^0*period*digit^1+digit^1*period*digit^0+digit^1)*S("eE")*sign^-1*digit^1
+patterns.propername=(uppercase+lowercase+underscore)*(uppercase+lowercase+underscore+digit)^0*endofstring
+patterns.somecontent=(anything-newline-space)^1
+patterns.beginline=#(1-newline)
+patterns.longtostring=Cs(whitespace^0/""*((patterns.quoted+nonwhitespace^1+whitespace^1/""*(P(-1)+Cc(" ")))^0))
+local function anywhere(pattern)
+ return P { P(pattern)+1*V(1) }
+end
+lpeg.anywhere=anywhere
+function lpeg.instringchecker(p)
+ p=anywhere(p)
+ return function(str)
+ return lpegmatch(p,str) and true or false
+ end
+end
+function lpeg.splitter(pattern,action)
+ return (((1-P(pattern))^1)/action+1)^0
+end
+function lpeg.tsplitter(pattern,action)
+ return Ct((((1-P(pattern))^1)/action+1)^0)
+end
+local splitters_s,splitters_m,splitters_t={},{},{}
+local function splitat(separator,single)
+ local splitter=(single and splitters_s[separator]) or splitters_m[separator]
+ if not splitter then
+ separator=P(separator)
+ local other=C((1-separator)^0)
+ if single then
+ local any=anything
+ splitter=other*(separator*C(any^0)+"")
+ splitters_s[separator]=splitter
+ else
+ splitter=other*(separator*other)^0
+ splitters_m[separator]=splitter
+ end
+ end
+ return splitter
+end
+local function tsplitat(separator)
+ local splitter=splitters_t[separator]
+ if not splitter then
+ splitter=Ct(splitat(separator))
+ splitters_t[separator]=splitter
+ end
+ return splitter
+end
+lpeg.splitat=splitat
+lpeg.tsplitat=tsplitat
+function string.splitup(str,separator)
+ if not separator then
+ separator=","
+ end
+ return lpegmatch(splitters_m[separator] or splitat(separator),str)
+end
+local cache={}
+function lpeg.split(separator,str)
+ local c=cache[separator]
+ if not c then
+ c=tsplitat(separator)
+ cache[separator]=c
+ end
+ return lpegmatch(c,str)
+end
+function string.split(str,separator)
+ if separator then
+ local c=cache[separator]
+ if not c then
+ c=tsplitat(separator)
+ cache[separator]=c
+ end
+ return lpegmatch(c,str)
+ else
+ return { str }
+ end
+end
+local spacing=patterns.spacer^0*newline
+local empty=spacing*Cc("")
+local nonempty=Cs((1-spacing)^1)*spacing^-1
+local content=(empty+nonempty)^1
+patterns.textline=content
+local linesplitter=tsplitat(newline)
+patterns.linesplitter=linesplitter
+function string.splitlines(str)
+ return lpegmatch(linesplitter,str)
+end
+local cache={}
+function lpeg.checkedsplit(separator,str)
+ local c=cache[separator]
+ if not c then
+ separator=P(separator)
+ local other=C((1-separator)^1)
+ c=Ct(separator^0*other*(separator^1*other)^0)
+ cache[separator]=c
+ end
+ return lpegmatch(c,str)
+end
+function string.checkedsplit(str,separator)
+ local c=cache[separator]
+ if not c then
+ separator=P(separator)
+ local other=C((1-separator)^1)
+ c=Ct(separator^0*other*(separator^1*other)^0)
+ cache[separator]=c
+ end
+ return lpegmatch(c,str)
+end
+local function f2(s) local c1,c2=byte(s,1,2) return c1*64+c2-12416 end
+local function f3(s) local c1,c2,c3=byte(s,1,3) return (c1*64+c2)*64+c3-925824 end
+local function f4(s) local c1,c2,c3,c4=byte(s,1,4) return ((c1*64+c2)*64+c3)*64+c4-63447168 end
+local utf8byte=patterns.utf8one/byte+patterns.utf8two/f2+patterns.utf8three/f3+patterns.utf8four/f4
+patterns.utf8byte=utf8byte
+local cache={}
+function lpeg.stripper(str)
+ if type(str)=="string" then
+ local s=cache[str]
+ if not s then
+ s=Cs(((S(str)^1)/""+1)^0)
+ cache[str]=s
+ end
+ return s
+ else
+ return Cs(((str^1)/""+1)^0)
+ end
+end
+local cache={}
+function lpeg.keeper(str)
+ if type(str)=="string" then
+ local s=cache[str]
+ if not s then
+ s=Cs((((1-S(str))^1)/""+1)^0)
+ cache[str]=s
+ end
+ return s
+ else
+ return Cs((((1-str)^1)/""+1)^0)
+ end
+end
+function lpeg.frontstripper(str)
+ return (P(str)+P(true))*Cs(anything^0)
+end
+function lpeg.endstripper(str)
+ return Cs((1-P(str)*endofstring)^0)
+end
+function lpeg.replacer(one,two,makefunction,isutf)
+ local pattern
+ local u=isutf and utf8char or 1
+ if type(one)=="table" then
+ local no=#one
+ local p=P(false)
+ if no==0 then
+ for k,v in next,one do
+ p=p+P(k)/v
+ end
+ pattern=Cs((p+u)^0)
+ elseif no==1 then
+ local o=one[1]
+ one,two=P(o[1]),o[2]
+ pattern=Cs((one/two+u)^0)
+ else
+ for i=1,no do
+ local o=one[i]
+ p=p+P(o[1])/o[2]
+ end
+ pattern=Cs((p+u)^0)
+ end
+ else
+ pattern=Cs((P(one)/(two or "")+u)^0)
+ end
+ if makefunction then
+ return function(str)
+ return lpegmatch(pattern,str)
+ end
+ else
+ return pattern
+ end
+end
+function lpeg.finder(lst,makefunction,isutf)
+ local pattern
+ if type(lst)=="table" then
+ pattern=P(false)
+ if #lst==0 then
+ for k,v in next,lst do
+ pattern=pattern+P(k)
+ end
+ else
+ for i=1,#lst do
+ pattern=pattern+P(lst[i])
+ end
+ end
+ else
+ pattern=P(lst)
+ end
+ if isutf then
+ pattern=((utf8char or 1)-pattern)^0*pattern
+ else
+ pattern=(1-pattern)^0*pattern
+ end
+ if makefunction then
+ return function(str)
+ return lpegmatch(pattern,str)
+ end
+ else
+ return pattern
+ end
+end
+local splitters_f,splitters_s={},{}
+function lpeg.firstofsplit(separator)
+ local splitter=splitters_f[separator]
+ if not splitter then
+ local pattern=P(separator)
+ splitter=C((1-pattern)^0)
+ splitters_f[separator]=splitter
+ end
+ return splitter
+end
+function lpeg.secondofsplit(separator)
+ local splitter=splitters_s[separator]
+ if not splitter then
+ local pattern=P(separator)
+ splitter=(1-pattern)^0*pattern*C(anything^0)
+ splitters_s[separator]=splitter
+ end
+ return splitter
+end
+local splitters_s,splitters_p={},{}
+function lpeg.beforesuffix(separator)
+ local splitter=splitters_s[separator]
+ if not splitter then
+ local pattern=P(separator)
+ splitter=C((1-pattern)^0)*pattern*endofstring
+ splitters_s[separator]=splitter
+ end
+ return splitter
+end
+function lpeg.afterprefix(separator)
+ local splitter=splitters_p[separator]
+ if not splitter then
+ local pattern=P(separator)
+ splitter=pattern*C(anything^0)
+ splitters_p[separator]=splitter
+ end
+ return splitter
+end
+function lpeg.balancer(left,right)
+ left,right=P(left),P(right)
+ return P { left*((1-left-right)+V(1))^0*right }
+end
+local nany=utf8char/""
+function lpeg.counter(pattern)
+ pattern=Cs((P(pattern)/" "+nany)^0)
+ return function(str)
+ return #lpegmatch(pattern,str)
+ end
+end
+utf=utf or (unicode and unicode.utf8) or {}
+local utfcharacters=utf and utf.characters or string.utfcharacters
+local utfgmatch=utf and utf.gmatch
+local utfchar=utf and utf.char
+lpeg.UP=lpeg.P
+if utfcharacters then
+ function lpeg.US(str)
+ local p=P(false)
+ for uc in utfcharacters(str) do
+ p=p+P(uc)
+ end
+ return p
+ end
+elseif utfgmatch then
+ function lpeg.US(str)
+ local p=P(false)
+ for uc in utfgmatch(str,".") do
+ p=p+P(uc)
+ end
+ return p
+ end
+else
+ function lpeg.US(str)
+ local p=P(false)
+ local f=function(uc)
+ p=p+P(uc)
+ end
+ lpegmatch((utf8char/f)^0,str)
+ return p
+ end
+end
+local range=utf8byte*utf8byte+Cc(false)
+function lpeg.UR(str,more)
+ local first,last
+ if type(str)=="number" then
+ first=str
+ last=more or first
+ else
+ first,last=lpegmatch(range,str)
+ if not last then
+ return P(str)
+ end
+ end
+ if first==last then
+ return P(str)
+ elseif utfchar and (last-first<8) then
+ local p=P(false)
+ for i=first,last do
+ p=p+P(utfchar(i))
+ end
+ return p
+ else
+ local f=function(b)
+ return b>=first and b<=last
+ end
+ return utf8byte/f
+ end
+end
+function lpeg.is_lpeg(p)
+ return p and lpegtype(p)=="pattern"
+end
+function lpeg.oneof(list,...)
+ if type(list)~="table" then
+ list={ list,... }
+ end
+ local p=P(list[1])
+ for l=2,#list do
+ p=p+P(list[l])
+ end
+ return p
+end
+local sort=table.sort
+local function copyindexed(old)
+ local new={}
+ for i=1,#old do
+ new[i]=old
+ end
+ return new
+end
+local function sortedkeys(tab)
+ local keys,s={},0
+ for key,_ in next,tab do
+ s=s+1
+ keys[s]=key
+ end
+ sort(keys)
+ return keys
+end
+function lpeg.append(list,pp,delayed,checked)
+ local p=pp
+ if #list>0 then
+ local keys=copyindexed(list)
+ sort(keys)
+ for i=#keys,1,-1 do
+ local k=keys[i]
+ if p then
+ p=P(k)+p
+ else
+ p=P(k)
+ end
+ end
+ elseif delayed then
+ local keys=sortedkeys(list)
+ if p then
+ for i=1,#keys,1 do
+ local k=keys[i]
+ local v=list[k]
+ p=P(k)/list+p
+ end
+ else
+ for i=1,#keys do
+ local k=keys[i]
+ local v=list[k]
+ if p then
+ p=P(k)+p
+ else
+ p=P(k)
+ end
+ end
+ if p then
+ p=p/list
+ end
+ end
+ elseif checked then
+ local keys=sortedkeys(list)
+ for i=1,#keys do
+ local k=keys[i]
+ local v=list[k]
+ if p then
+ if k==v then
+ p=P(k)+p
+ else
+ p=P(k)/v+p
+ end
+ else
+ if k==v then
+ p=P(k)
+ else
+ p=P(k)/v
+ end
+ end
+ end
+ else
+ local keys=sortedkeys(list)
+ for i=1,#keys do
+ local k=keys[i]
+ local v=list[k]
+ if p then
+ p=P(k)/v+p
+ else
+ p=P(k)/v
+ end
+ end
+ end
+ return p
+end
+local function make(t,hash)
+ local p=P(false)
+ local keys=sortedkeys(t)
+ for i=1,#keys do
+ local k=keys[i]
+ local v=t[k]
+ local h=hash[v]
+ if h then
+ if next(v) then
+ p=p+P(k)*(make(v,hash)+P(true))
+ else
+ p=p+P(k)*P(true)
+ end
+ else
+ if next(v) then
+ p=p+P(k)*make(v,hash)
+ else
+ p=p+P(k)
+ end
+ end
+ end
+ return p
+end
+function lpeg.utfchartabletopattern(list)
+ local tree={}
+ local hash={}
+ local n=#list
+ if n==0 then
+ for s in next,list do
+ local t=tree
+ for c in gmatch(s,".") do
+ local tc=t[c]
+ if not tc then
+ tc={}
+ t[c]=tc
+ end
+ t=tc
+ end
+ hash[t]=s
+ end
+ else
+ for i=1,n do
+ local t=tree
+ local s=list[i]
+ for c in gmatch(s,".") do
+ local tc=t[c]
+ if not tc then
+ tc={}
+ t[c]=tc
+ end
+ t=tc
+ end
+ hash[t]=s
+ end
+ end
+ return make(tree,hash)
+end
+patterns.containseol=lpeg.finder(eol)
+local function nextstep(n,step,result)
+ local m=n%step
+ local d=floor(n/step)
+ if d>0 then
+ local v=V(tostring(step))
+ local s=result.start
+ for i=1,d do
+ if s then
+ s=v*s
+ else
+ s=v
+ end
+ end
+ result.start=s
+ end
+ if step>1 and result.start then
+ local v=V(tostring(step/2))
+ result[tostring(step)]=v*v
+ end
+ if step>0 then
+ return nextstep(m,step/2,result)
+ else
+ return result
+ end
+end
+function lpeg.times(pattern,n)
+ return P(nextstep(n,2^16,{ "start",["1"]=pattern }))
+end
+local trailingzeros=zero^0*-digit
+local case_1=period*trailingzeros/""
+local case_2=period*(digit-trailingzeros)^1*(trailingzeros/"")
+local number=digit^1*(case_1+case_2)
+local stripper=Cs((number+1)^0)
+lpeg.patterns.stripzeros=stripper
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['l-functions']={
+ version=1.001,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+functions=functions or {}
+function functions.dummy() end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['l-string']={
+ version=1.001,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local string=string
+local sub,gmatch,format,char,byte,rep,lower=string.sub,string.gmatch,string.format,string.char,string.byte,string.rep,string.lower
+local lpegmatch,patterns=lpeg.match,lpeg.patterns
+local P,S,C,Ct,Cc,Cs=lpeg.P,lpeg.S,lpeg.C,lpeg.Ct,lpeg.Cc,lpeg.Cs
+local unquoted=patterns.squote*C(patterns.nosquote)*patterns.squote+patterns.dquote*C(patterns.nodquote)*patterns.dquote
+function string.unquoted(str)
+ return lpegmatch(unquoted,str) or str
+end
+function string.quoted(str)
+ return format("%q",str)
+end
+function string.count(str,pattern)
+ local n=0
+ for _ in gmatch(str,pattern) do
+ n=n+1
+ end
+ return n
+end
+function string.limit(str,n,sentinel)
+ if #str>n then
+ sentinel=sentinel or "..."
+ return sub(str,1,(n-#sentinel))..sentinel
+ else
+ return str
+ end
+end
+local stripper=patterns.stripper
+local fullstripper=patterns.fullstripper
+local collapser=patterns.collapser
+local longtostring=patterns.longtostring
+function string.strip(str)
+ return lpegmatch(stripper,str) or ""
+end
+function string.fullstrip(str)
+ return lpegmatch(fullstripper,str) or ""
+end
+function string.collapsespaces(str)
+ return lpegmatch(collapser,str) or ""
+end
+function string.longtostring(str)
+ return lpegmatch(longtostring,str) or ""
+end
+local pattern=P(" ")^0*P(-1)
+function string.is_empty(str)
+ if str=="" then
+ return true
+ else
+ return lpegmatch(pattern,str) and true or false
+ end
+end
+local anything=patterns.anything
+local allescapes=Cc("%")*S(".-+%?()[]*")
+local someescapes=Cc("%")*S(".-+%()[]")
+local matchescapes=Cc(".")*S("*?")
+local pattern_a=Cs ((allescapes+anything )^0 )
+local pattern_b=Cs ((someescapes+matchescapes+anything )^0 )
+local pattern_c=Cs (Cc("^")*(someescapes+matchescapes+anything )^0*Cc("$") )
+function string.escapedpattern(str,simple)
+ return lpegmatch(simple and pattern_b or pattern_a,str)
+end
+function string.topattern(str,lowercase,strict)
+ if str=="" or type(str)~="string" then
+ return ".*"
+ elseif strict then
+ str=lpegmatch(pattern_c,str)
+ else
+ str=lpegmatch(pattern_b,str)
+ end
+ if lowercase then
+ return lower(str)
+ else
+ return str
+ end
+end
+function string.valid(str,default)
+ return (type(str)=="string" and str~="" and str) or default or nil
+end
+string.itself=function(s) return s end
+local pattern=Ct(C(1)^0)
+function string.totable(str)
+ return lpegmatch(pattern,str)
+end
+local replacer=lpeg.replacer("@","%%")
+function string.tformat(fmt,...)
+ return format(lpegmatch(replacer,fmt),...)
+end
+string.quote=string.quoted
+string.unquote=string.unquoted
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['l-table']={
+ version=1.001,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local type,next,tostring,tonumber,ipairs,select=type,next,tostring,tonumber,ipairs,select
+local table,string=table,string
+local concat,sort,insert,remove=table.concat,table.sort,table.insert,table.remove
+local format,lower,dump=string.format,string.lower,string.dump
+local getmetatable,setmetatable=getmetatable,setmetatable
+local getinfo=debug.getinfo
+local lpegmatch,patterns=lpeg.match,lpeg.patterns
+local floor=math.floor
+local stripper=patterns.stripper
+function table.strip(tab)
+ local lst,l={},0
+ for i=1,#tab do
+ local s=lpegmatch(stripper,tab[i]) or ""
+ if s=="" then
+ else
+ l=l+1
+ lst[l]=s
+ end
+ end
+ return lst
+end
+function table.keys(t)
+ if t then
+ local keys,k={},0
+ for key,_ in next,t do
+ k=k+1
+ keys[k]=key
+ end
+ return keys
+ else
+ return {}
+ end
+end
+local function compare(a,b)
+ local ta,tb=type(a),type(b)
+ if ta==tb then
+ return a<b
+ else
+ return tostring(a)<tostring(b)
+ end
+end
+local function sortedkeys(tab)
+ if tab then
+ local srt,category,s={},0,0
+ for key,_ in next,tab do
+ s=s+1
+ srt[s]=key
+ if category==3 then
+ else
+ local tkey=type(key)
+ if tkey=="string" then
+ category=(category==2 and 3) or 1
+ elseif tkey=="number" then
+ category=(category==1 and 3) or 2
+ else
+ category=3
+ end
+ end
+ end
+ if category==0 or category==3 then
+ sort(srt,compare)
+ else
+ sort(srt)
+ end
+ return srt
+ else
+ return {}
+ end
+end
+local function sortedhashonly(tab)
+ if tab then
+ local srt,s={},0
+ for key,_ in next,tab do
+ if type(key)=="string" then
+ s=s+1
+ srt[s]=key
+ end
+ end
+ sort(srt)
+ return srt
+ else
+ return {}
+ end
+end
+local function sortedindexonly(tab)
+ if tab then
+ local srt,s={},0
+ for key,_ in next,tab do
+ if type(key)=="number" then
+ s=s+1
+ srt[s]=key
+ end
+ end
+ sort(srt)
+ return srt
+ else
+ return {}
+ end
+end
+local function sortedhashkeys(tab,cmp)
+ if tab then
+ local srt,s={},0
+ for key,_ in next,tab do
+ if key then
+ s=s+1
+ srt[s]=key
+ end
+ end
+ sort(srt,cmp)
+ return srt
+ else
+ return {}
+ end
+end
+function table.allkeys(t)
+ local keys={}
+ for k,v in next,t do
+ for k,v in next,v do
+ keys[k]=true
+ end
+ end
+ return sortedkeys(keys)
+end
+table.sortedkeys=sortedkeys
+table.sortedhashonly=sortedhashonly
+table.sortedindexonly=sortedindexonly
+table.sortedhashkeys=sortedhashkeys
+local function nothing() end
+local function sortedhash(t,cmp)
+ if t then
+ local s
+ if cmp then
+ s=sortedhashkeys(t,function(a,b) return cmp(t,a,b) end)
+ else
+ s=sortedkeys(t)
+ end
+ local n=0
+ local m=#s
+ local function kv()
+ if n<m then
+ n=n+1
+ local k=s[n]
+ return k,t[k]
+ end
+ end
+ return kv
+ else
+ return nothing
+ end
+end
+table.sortedhash=sortedhash
+table.sortedpairs=sortedhash
+function table.append(t,list)
+ local n=#t
+ for i=1,#list do
+ n=n+1
+ t[n]=list[i]
+ end
+ return t
+end
+function table.prepend(t,list)
+ local nl=#list
+ local nt=nl+#t
+ for i=#t,1,-1 do
+ t[nt]=t[i]
+ nt=nt-1
+ end
+ for i=1,#list do
+ t[i]=list[i]
+ end
+ return t
+end
+function table.merge(t,...)
+ t=t or {}
+ for i=1,select("#",...) do
+ for k,v in next,(select(i,...)) do
+ t[k]=v
+ end
+ end
+ return t
+end
+function table.merged(...)
+ local t={}
+ for i=1,select("#",...) do
+ for k,v in next,(select(i,...)) do
+ t[k]=v
+ end
+ end
+ return t
+end
+function table.imerge(t,...)
+ local nt=#t
+ for i=1,select("#",...) do
+ local nst=select(i,...)
+ for j=1,#nst do
+ nt=nt+1
+ t[nt]=nst[j]
+ end
+ end
+ return t
+end
+function table.imerged(...)
+ local tmp,ntmp={},0
+ for i=1,select("#",...) do
+ local nst=select(i,...)
+ for j=1,#nst do
+ ntmp=ntmp+1
+ tmp[ntmp]=nst[j]
+ end
+ end
+ return tmp
+end
+local function fastcopy(old,metatabletoo)
+ if old then
+ local new={}
+ for k,v in next,old do
+ if type(v)=="table" then
+ new[k]=fastcopy(v,metatabletoo)
+ else
+ new[k]=v
+ end
+ end
+ if metatabletoo then
+ local mt=getmetatable(old)
+ if mt then
+ setmetatable(new,mt)
+ end
+ end
+ return new
+ else
+ return {}
+ end
+end
+local function copy(t,tables)
+ tables=tables or {}
+ local tcopy={}
+ if not tables[t] then
+ tables[t]=tcopy
+ end
+ for i,v in next,t do
+ if type(i)=="table" then
+ if tables[i] then
+ i=tables[i]
+ else
+ i=copy(i,tables)
+ end
+ end
+ if type(v)~="table" then
+ tcopy[i]=v
+ elseif tables[v] then
+ tcopy[i]=tables[v]
+ else
+ tcopy[i]=copy(v,tables)
+ end
+ end
+ local mt=getmetatable(t)
+ if mt then
+ setmetatable(tcopy,mt)
+ end
+ return tcopy
+end
+table.fastcopy=fastcopy
+table.copy=copy
+function table.derive(parent)
+ local child={}
+ if parent then
+ setmetatable(child,{ __index=parent })
+ end
+ return child
+end
+function table.tohash(t,value)
+ local h={}
+ if t then
+ if value==nil then value=true end
+ for _,v in next,t do
+ h[v]=value
+ end
+ end
+ return h
+end
+function table.fromhash(t)
+ local hsh,h={},0
+ for k,v in next,t do
+ if v then
+ h=h+1
+ hsh[h]=k
+ end
+ end
+ return hsh
+end
+local noquotes,hexify,handle,reduce,compact,inline,functions
+local reserved=table.tohash {
+ 'and','break','do','else','elseif','end','false','for','function','if',
+ 'in','local','nil','not','or','repeat','return','then','true','until','while',
+ 'NaN','goto',
+}
+local function simple_table(t)
+ if #t>0 then
+ local n=0
+ for _,v in next,t do
+ n=n+1
+ end
+ if n==#t then
+ local tt,nt={},0
+ for i=1,#t do
+ local v=t[i]
+ local tv=type(v)
+ if tv=="number" then
+ nt=nt+1
+ if hexify then
+ tt[nt]=format("0x%X",v)
+ else
+ tt[nt]=tostring(v)
+ end
+ elseif tv=="string" then
+ nt=nt+1
+ tt[nt]=format("%q",v)
+ elseif tv=="boolean" then
+ nt=nt+1
+ tt[nt]=v and "true" or "false"
+ else
+ tt=nil
+ break
+ end
+ end
+ return tt
+ end
+ end
+ return nil
+end
+local propername=patterns.propername
+local function dummy() end
+local function do_serialize(root,name,depth,level,indexed)
+ if level>0 then
+ depth=depth.." "
+ if indexed then
+ handle(format("%s{",depth))
+ else
+ local tn=type(name)
+ if tn=="number" then
+ if hexify then
+ handle(format("%s[0x%X]={",depth,name))
+ else
+ handle(format("%s[%s]={",depth,name))
+ end
+ elseif tn=="string" then
+ if noquotes and not reserved[name] and lpegmatch(propername,name) then
+ handle(format("%s%s={",depth,name))
+ else
+ handle(format("%s[%q]={",depth,name))
+ end
+ elseif tn=="boolean" then
+ handle(format("%s[%s]={",depth,name and "true" or "false"))
+ else
+ handle(format("%s{",depth))
+ end
+ end
+ end
+ if root and next(root) then
+ local first,last=nil,0
+ if compact then
+ last=#root
+ for k=1,last do
+ if root[k]==nil then
+ last=k-1
+ break
+ end
+ end
+ if last>0 then
+ first=1
+ end
+ end
+ local sk=sortedkeys(root)
+ for i=1,#sk do
+ local k=sk[i]
+ local v=root[k]
+ local tv,tk=type(v),type(k)
+ if compact and first and tk=="number" and k>=first and k<=last then
+ if tv=="number" then
+ if hexify then
+ handle(format("%s 0x%X,",depth,v))
+ else
+ handle(format("%s %s,",depth,v))
+ end
+ elseif tv=="string" then
+ if reduce and tonumber(v) then
+ handle(format("%s %s,",depth,v))
+ else
+ handle(format("%s %q,",depth,v))
+ end
+ elseif tv=="table" then
+ if not next(v) then
+ handle(format("%s {},",depth))
+ elseif inline then
+ local st=simple_table(v)
+ if st then
+ handle(format("%s { %s },",depth,concat(st,", ")))
+ else
+ do_serialize(v,k,depth,level+1,true)
+ end
+ else
+ do_serialize(v,k,depth,level+1,true)
+ end
+ elseif tv=="boolean" then
+ handle(format("%s %s,",depth,v and "true" or "false"))
+ elseif tv=="function" then
+ if functions then
+ handle(format('%s load(%q),',depth,dump(v)))
+ else
+ handle(format('%s "function",',depth))
+ end
+ else
+ handle(format("%s %q,",depth,tostring(v)))
+ end
+ elseif k=="__p__" then
+ if false then
+ handle(format("%s __p__=nil,",depth))
+ end
+ elseif tv=="number" then
+ if tk=="number" then
+ if hexify then
+ handle(format("%s [0x%X]=0x%X,",depth,k,v))
+ else
+ handle(format("%s [%s]=%s,",depth,k,v))
+ end
+ elseif tk=="boolean" then
+ if hexify then
+ handle(format("%s [%s]=0x%X,",depth,k and "true" or "false",v))
+ else
+ handle(format("%s [%s]=%s,",depth,k and "true" or "false",v))
+ end
+ elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+ if hexify then
+ handle(format("%s %s=0x%X,",depth,k,v))
+ else
+ handle(format("%s %s=%s,",depth,k,v))
+ end
+ else
+ if hexify then
+ handle(format("%s [%q]=0x%X,",depth,k,v))
+ else
+ handle(format("%s [%q]=%s,",depth,k,v))
+ end
+ end
+ elseif tv=="string" then
+ if reduce and tonumber(v) then
+ if tk=="number" then
+ if hexify then
+ handle(format("%s [0x%X]=%s,",depth,k,v))
+ else
+ handle(format("%s [%s]=%s,",depth,k,v))
+ end
+ elseif tk=="boolean" then
+ handle(format("%s [%s]=%s,",depth,k and "true" or "false",v))
+ elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+ handle(format("%s %s=%s,",depth,k,v))
+ else
+ handle(format("%s [%q]=%s,",depth,k,v))
+ end
+ else
+ if tk=="number" then
+ if hexify then
+ handle(format("%s [0x%X]=%q,",depth,k,v))
+ else
+ handle(format("%s [%s]=%q,",depth,k,v))
+ end
+ elseif tk=="boolean" then
+ handle(format("%s [%s]=%q,",depth,k and "true" or "false",v))
+ elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+ handle(format("%s %s=%q,",depth,k,v))
+ else
+ handle(format("%s [%q]=%q,",depth,k,v))
+ end
+ end
+ elseif tv=="table" then
+ if not next(v) then
+ if tk=="number" then
+ if hexify then
+ handle(format("%s [0x%X]={},",depth,k))
+ else
+ handle(format("%s [%s]={},",depth,k))
+ end
+ elseif tk=="boolean" then
+ handle(format("%s [%s]={},",depth,k and "true" or "false"))
+ elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+ handle(format("%s %s={},",depth,k))
+ else
+ handle(format("%s [%q]={},",depth,k))
+ end
+ elseif inline then
+ local st=simple_table(v)
+ if st then
+ if tk=="number" then
+ if hexify then
+ handle(format("%s [0x%X]={ %s },",depth,k,concat(st,", ")))
+ else
+ handle(format("%s [%s]={ %s },",depth,k,concat(st,", ")))
+ end
+ elseif tk=="boolean" then
+ handle(format("%s [%s]={ %s },",depth,k and "true" or "false",concat(st,", ")))
+ elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+ handle(format("%s %s={ %s },",depth,k,concat(st,", ")))
+ else
+ handle(format("%s [%q]={ %s },",depth,k,concat(st,", ")))
+ end
+ else
+ do_serialize(v,k,depth,level+1)
+ end
+ else
+ do_serialize(v,k,depth,level+1)
+ end
+ elseif tv=="boolean" then
+ if tk=="number" then
+ if hexify then
+ handle(format("%s [0x%X]=%s,",depth,k,v and "true" or "false"))
+ else
+ handle(format("%s [%s]=%s,",depth,k,v and "true" or "false"))
+ end
+ elseif tk=="boolean" then
+ handle(format("%s [%s]=%s,",depth,tostring(k),v and "true" or "false"))
+ elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+ handle(format("%s %s=%s,",depth,k,v and "true" or "false"))
+ else
+ handle(format("%s [%q]=%s,",depth,k,v and "true" or "false"))
+ end
+ elseif tv=="function" then
+ if functions then
+ local f=getinfo(v).what=="C" and dump(dummy) or dump(v)
+ if tk=="number" then
+ if hexify then
+ handle(format("%s [0x%X]=load(%q),",depth,k,f))
+ else
+ handle(format("%s [%s]=load(%q),",depth,k,f))
+ end
+ elseif tk=="boolean" then
+ handle(format("%s [%s]=load(%q),",depth,k and "true" or "false",f))
+ elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+ handle(format("%s %s=load(%q),",depth,k,f))
+ else
+ handle(format("%s [%q]=load(%q),",depth,k,f))
+ end
+ end
+ else
+ if tk=="number" then
+ if hexify then
+ handle(format("%s [0x%X]=%q,",depth,k,tostring(v)))
+ else
+ handle(format("%s [%s]=%q,",depth,k,tostring(v)))
+ end
+ elseif tk=="boolean" then
+ handle(format("%s [%s]=%q,",depth,k and "true" or "false",tostring(v)))
+ elseif noquotes and not reserved[k] and lpegmatch(propername,k) then
+ handle(format("%s %s=%q,",depth,k,tostring(v)))
+ else
+ handle(format("%s [%q]=%q,",depth,k,tostring(v)))
+ end
+ end
+ end
+ end
+ if level>0 then
+ handle(format("%s},",depth))
+ end
+end
+local function serialize(_handle,root,name,specification)
+ local tname=type(name)
+ if type(specification)=="table" then
+ noquotes=specification.noquotes
+ hexify=specification.hexify
+ handle=_handle or specification.handle or print
+ reduce=specification.reduce or false
+ functions=specification.functions
+ compact=specification.compact
+ inline=specification.inline and compact
+ if functions==nil then
+ functions=true
+ end
+ if compact==nil then
+ compact=true
+ end
+ if inline==nil then
+ inline=compact
+ end
+ else
+ noquotes=false
+ hexify=false
+ handle=_handle or print
+ reduce=false
+ compact=true
+ inline=true
+ functions=true
+ end
+ if tname=="string" then
+ if name=="return" then
+ handle("return {")
+ else
+ handle(name.."={")
+ end
+ elseif tname=="number" then
+ if hexify then
+ handle(format("[0x%X]={",name))
+ else
+ handle("["..name.."]={")
+ end
+ elseif tname=="boolean" then
+ if name then
+ handle("return {")
+ else
+ handle("{")
+ end
+ else
+ handle("t={")
+ end
+ if root then
+ if getmetatable(root) then
+ local dummy=root._w_h_a_t_e_v_e_r_
+ root._w_h_a_t_e_v_e_r_=nil
+ end
+ if next(root) then
+ do_serialize(root,name,"",0)
+ end
+ end
+ handle("}")
+end
+function table.serialize(root,name,specification)
+ local t,n={},0
+ local function flush(s)
+ n=n+1
+ t[n]=s
+ end
+ serialize(flush,root,name,specification)
+ return concat(t,"\n")
+end
+table.tohandle=serialize
+local maxtab=2*1024
+function table.tofile(filename,root,name,specification)
+ local f=io.open(filename,'w')
+ if f then
+ if maxtab>1 then
+ local t,n={},0
+ local function flush(s)
+ n=n+1
+ t[n]=s
+ if n>maxtab then
+ f:write(concat(t,"\n"),"\n")
+ t,n={},0
+ end
+ end
+ serialize(flush,root,name,specification)
+ f:write(concat(t,"\n"),"\n")
+ else
+ local function flush(s)
+ f:write(s,"\n")
+ end
+ serialize(flush,root,name,specification)
+ end
+ f:close()
+ io.flush()
+ end
+end
+local function flattened(t,f,depth)
+ if f==nil then
+ f={}
+ depth=0xFFFF
+ elseif tonumber(f) then
+ depth=f
+ f={}
+ elseif not depth then
+ depth=0xFFFF
+ end
+ for k,v in next,t do
+ if type(k)~="number" then
+ if depth>0 and type(v)=="table" then
+ flattened(v,f,depth-1)
+ else
+ f[#f+1]=v
+ end
+ end
+ end
+ for k=1,#t do
+ local v=t[k]
+ if depth>0 and type(v)=="table" then
+ flattened(v,f,depth-1)
+ else
+ f[#f+1]=v
+ end
+ end
+ return f
+end
+table.flattened=flattened
+local function unnest(t,f)
+ if not f then
+ f={}
+ end
+ for i=1,#t do
+ local v=t[i]
+ if type(v)=="table" then
+ if type(v[1])=="table" then
+ unnest(v,f)
+ else
+ f[#f+1]=v
+ end
+ else
+ f[#f+1]=v
+ end
+ end
+ return f
+end
+function table.unnest(t)
+ return unnest(t)
+end
+local function are_equal(a,b,n,m)
+ if a and b and #a==#b then
+ n=n or 1
+ m=m or #a
+ for i=n,m do
+ local ai,bi=a[i],b[i]
+ if ai==bi then
+ elseif type(ai)=="table" and type(bi)=="table" then
+ if not are_equal(ai,bi) then
+ return false
+ end
+ else
+ return false
+ end
+ end
+ return true
+ else
+ return false
+ end
+end
+local function identical(a,b)
+ for ka,va in next,a do
+ local vb=b[ka]
+ if va==vb then
+ elseif type(va)=="table" and type(vb)=="table" then
+ if not identical(va,vb) then
+ return false
+ end
+ else
+ return false
+ end
+ end
+ return true
+end
+table.identical=identical
+table.are_equal=are_equal
+local function sparse(old,nest,keeptables)
+ local new={}
+ for k,v in next,old do
+ if not (v=="" or v==false) then
+ if nest and type(v)=="table" then
+ v=sparse(v,nest)
+ if keeptables or next(v) then
+ new[k]=v
+ end
+ else
+ new[k]=v
+ end
+ end
+ end
+ return new
+end
+table.sparse=sparse
+function table.compact(t)
+ return sparse(t,true,true)
+end
+function table.contains(t,v)
+ if t then
+ for i=1,#t do
+ if t[i]==v then
+ return i
+ end
+ end
+ end
+ return false
+end
+function table.count(t)
+ local n=0
+ for k,v in next,t do
+ n=n+1
+ end
+ return n
+end
+function table.swapped(t,s)
+ local n={}
+ if s then
+ for k,v in next,s do
+ n[k]=v
+ end
+ end
+ for k,v in next,t do
+ n[v]=k
+ end
+ return n
+end
+function table.mirrored(t)
+ local n={}
+ for k,v in next,t do
+ n[v]=k
+ n[k]=v
+ end
+ return n
+end
+function table.reversed(t)
+ if t then
+ local tt,tn={},#t
+ if tn>0 then
+ local ttn=0
+ for i=tn,1,-1 do
+ ttn=ttn+1
+ tt[ttn]=t[i]
+ end
+ end
+ return tt
+ end
+end
+function table.reverse(t)
+ if t then
+ local n=#t
+ for i=1,floor(n/2) do
+ local j=n-i+1
+ t[i],t[j]=t[j],t[i]
+ end
+ return t
+ end
+end
+function table.sequenced(t,sep,simple)
+ if not t then
+ return ""
+ end
+ local n=#t
+ local s={}
+ if n>0 then
+ for i=1,n do
+ s[i]=tostring(t[i])
+ end
+ else
+ n=0
+ for k,v in sortedhash(t) do
+ if simple then
+ if v==true then
+ n=n+1
+ s[n]=k
+ elseif v and v~="" then
+ n=n+1
+ s[n]=k.."="..tostring(v)
+ end
+ else
+ n=n+1
+ s[n]=k.."="..tostring(v)
+ end
+ end
+ end
+ return concat(s,sep or " | ")
+end
+function table.print(t,...)
+ if type(t)~="table" then
+ print(tostring(t))
+ else
+ serialize(print,t,...)
+ end
+end
+if setinspector then
+ setinspector(function(v) if type(v)=="table" then serialize(print,v,"table") return true end end)
+end
+function table.sub(t,i,j)
+ return { unpack(t,i,j) }
+end
+function table.is_empty(t)
+ return not t or not next(t)
+end
+function table.has_one_entry(t)
+ return t and not next(t,next(t))
+end
+function table.loweredkeys(t)
+ local l={}
+ for k,v in next,t do
+ l[lower(k)]=v
+ end
+ return l
+end
+function table.unique(old)
+ local hash={}
+ local new={}
+ local n=0
+ for i=1,#old do
+ local oi=old[i]
+ if not hash[oi] then
+ n=n+1
+ new[n]=oi
+ hash[oi]=true
+ end
+ end
+ return new
+end
+function table.sorted(t,...)
+ sort(t,...)
+ return t
+end
+function table.values(t,s)
+ if t then
+ local values,keys,v={},{},0
+ for key,value in next,t do
+ if not keys[value] then
+ v=v+1
+ values[v]=value
+ keys[k]=key
+ end
+ end
+ if s then
+ sort(values)
+ end
+ return values
+ else
+ return {}
+ end
+end
+function table.filtered(t,pattern,sort,cmp)
+ if t and type(pattern)=="string" then
+ if sort then
+ local s
+ if cmp then
+ s=sortedhashkeys(t,function(a,b) return cmp(t,a,b) end)
+ else
+ s=sortedkeys(t)
+ end
+ local n=0
+ local m=#s
+ local function kv(s)
+ while n<m do
+ n=n+1
+ local k=s[n]
+ if find(k,pattern) then
+ return k,t[k]
+ end
+ end
+ end
+ return kv,s
+ else
+ local n=next(t)
+ local function iterator()
+ while n do
+ local k=n
+ n=next(t,k)
+ if find(k,pattern) then
+ return k,t[k]
+ end
+ end
+ end
+ return iterator,t
+ end
+ else
+ return nothing
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['l-io']={
+ version=1.001,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local io=io
+local byte,find,gsub,format=string.byte,string.find,string.gsub,string.format
+local concat=table.concat
+local floor=math.floor
+local type=type
+if string.find(os.getenv("PATH"),";",1,true) then
+ io.fileseparator,io.pathseparator="\\",";"
+else
+ io.fileseparator,io.pathseparator="/",":"
+end
+local function readall(f)
+ return f:read("*all")
+end
+local function readall(f)
+ local size=f:seek("end")
+ if size==0 then
+ return ""
+ elseif size<1024*1024 then
+ f:seek("set",0)
+ return f:read('*all')
+ else
+ local done=f:seek("set",0)
+ local step
+ if size<1024*1024 then
+ step=1024*1024
+ elseif size>16*1024*1024 then
+ step=16*1024*1024
+ else
+ step=floor(size/(1024*1024))*1024*1024/8
+ end
+ local data={}
+ while true do
+ local r=f:read(step)
+ if not r then
+ return concat(data)
+ else
+ data[#data+1]=r
+ end
+ end
+ end
+end
+io.readall=readall
+function io.loaddata(filename,textmode)
+ local f=io.open(filename,(textmode and 'r') or 'rb')
+ if f then
+ local data=readall(f)
+ f:close()
+ if #data>0 then
+ return data
+ end
+ end
+end
+function io.savedata(filename,data,joiner)
+ local f=io.open(filename,"wb")
+ if f then
+ if type(data)=="table" then
+ f:write(concat(data,joiner or ""))
+ elseif type(data)=="function" then
+ data(f)
+ else
+ f:write(data or "")
+ end
+ f:close()
+ io.flush()
+ return true
+ else
+ return false
+ end
+end
+function io.loadlines(filename,n)
+ local f=io.open(filename,'r')
+ if not f then
+ elseif n then
+ local lines={}
+ for i=1,n do
+ local line=f:read("*lines")
+ if line then
+ lines[#lines+1]=line
+ else
+ break
+ end
+ end
+ f:close()
+ lines=concat(lines,"\n")
+ if #lines>0 then
+ return lines
+ end
+ else
+ local line=f:read("*line") or ""
+ f:close()
+ if #line>0 then
+ return line
+ end
+ end
+end
+function io.loadchunk(filename,n)
+ local f=io.open(filename,'rb')
+ if f then
+ local data=f:read(n or 1024)
+ f:close()
+ if #data>0 then
+ return data
+ end
+ end
+end
+function io.exists(filename)
+ local f=io.open(filename)
+ if f==nil then
+ return false
+ else
+ f:close()
+ return true
+ end
+end
+function io.size(filename)
+ local f=io.open(filename)
+ if f==nil then
+ return 0
+ else
+ local s=f:seek("end")
+ f:close()
+ return s
+ end
+end
+function io.noflines(f)
+ if type(f)=="string" then
+ local f=io.open(filename)
+ if f then
+ local n=f and io.noflines(f) or 0
+ f:close()
+ return n
+ else
+ return 0
+ end
+ else
+ local n=0
+ for _ in f:lines() do
+ n=n+1
+ end
+ f:seek('set',0)
+ return n
+ end
+end
+local nextchar={
+ [ 4]=function(f)
+ return f:read(1,1,1,1)
+ end,
+ [ 2]=function(f)
+ return f:read(1,1)
+ end,
+ [ 1]=function(f)
+ return f:read(1)
+ end,
+ [-2]=function(f)
+ local a,b=f:read(1,1)
+ return b,a
+ end,
+ [-4]=function(f)
+ local a,b,c,d=f:read(1,1,1,1)
+ return d,c,b,a
+ end
+}
+function io.characters(f,n)
+ if f then
+ return nextchar[n or 1],f
+ end
+end
+local nextbyte={
+ [4]=function(f)
+ local a,b,c,d=f:read(1,1,1,1)
+ if d then
+ return byte(a),byte(b),byte(c),byte(d)
+ end
+ end,
+ [3]=function(f)
+ local a,b,c=f:read(1,1,1)
+ if b then
+ return byte(a),byte(b),byte(c)
+ end
+ end,
+ [2]=function(f)
+ local a,b=f:read(1,1)
+ if b then
+ return byte(a),byte(b)
+ end
+ end,
+ [1]=function (f)
+ local a=f:read(1)
+ if a then
+ return byte(a)
+ end
+ end,
+ [-2]=function (f)
+ local a,b=f:read(1,1)
+ if b then
+ return byte(b),byte(a)
+ end
+ end,
+ [-3]=function(f)
+ local a,b,c=f:read(1,1,1)
+ if b then
+ return byte(c),byte(b),byte(a)
+ end
+ end,
+ [-4]=function(f)
+ local a,b,c,d=f:read(1,1,1,1)
+ if d then
+ return byte(d),byte(c),byte(b),byte(a)
+ end
+ end
+}
+function io.bytes(f,n)
+ if f then
+ return nextbyte[n or 1],f
+ else
+ return nil,nil
+ end
+end
+function io.ask(question,default,options)
+ while true do
+ io.write(question)
+ if options then
+ io.write(format(" [%s]",concat(options,"|")))
+ end
+ if default then
+ io.write(format(" [%s]",default))
+ end
+ io.write(format(" "))
+ io.flush()
+ local answer=io.read()
+ answer=gsub(answer,"^%s*(.*)%s*$","%1")
+ if answer=="" and default then
+ return default
+ elseif not options then
+ return answer
+ else
+ for k=1,#options do
+ if options[k]==answer then
+ return answer
+ end
+ end
+ local pattern="^"..answer
+ for k=1,#options do
+ local v=options[k]
+ if find(v,pattern) then
+ return v
+ end
+ end
+ end
+ end
+end
+local function readnumber(f,n,m)
+ if m then
+ f:seek("set",n)
+ n=m
+ end
+ if n==1 then
+ return byte(f:read(1))
+ elseif n==2 then
+ local a,b=byte(f:read(2),1,2)
+ return 256*a+b
+ elseif n==3 then
+ local a,b,c=byte(f:read(3),1,3)
+ return 256*256*a+256*b+c
+ elseif n==4 then
+ local a,b,c,d=byte(f:read(4),1,4)
+ return 256*256*256*a+256*256*b+256*c+d
+ elseif n==8 then
+ local a,b=readnumber(f,4),readnumber(f,4)
+ return 256*a+b
+ elseif n==12 then
+ local a,b,c=readnumber(f,4),readnumber(f,4),readnumber(f,4)
+ return 256*256*a+256*b+c
+ elseif n==-2 then
+ local b,a=byte(f:read(2),1,2)
+ return 256*a+b
+ elseif n==-3 then
+ local c,b,a=byte(f:read(3),1,3)
+ return 256*256*a+256*b+c
+ elseif n==-4 then
+ local d,c,b,a=byte(f:read(4),1,4)
+ return 256*256*256*a+256*256*b+256*c+d
+ elseif n==-8 then
+ local h,g,f,e,d,c,b,a=byte(f:read(8),1,8)
+ return 256*256*256*256*256*256*256*a+256*256*256*256*256*256*b+256*256*256*256*256*c+256*256*256*256*d+256*256*256*e+256*256*f+256*g+h
+ else
+ return 0
+ end
+end
+io.readnumber=readnumber
+function io.readstring(f,n,m)
+ if m then
+ f:seek("set",n)
+ n=m
+ end
+ local str=gsub(f:read(n),"\000","")
+ return str
+end
+if not io.i_limiter then function io.i_limiter() end end
+if not io.o_limiter then function io.o_limiter() end end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['l-file']={
+ version=1.001,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+file=file or {}
+local file=file
+if not lfs then
+ lfs=optionalrequire("lfs")
+end
+if not lfs then
+ lfs={
+ getcurrentdir=function()
+ return "."
+ end,
+ attributes=function()
+ return nil
+ end,
+ isfile=function(name)
+ local f=io.open(name,'rb')
+ if f then
+ f:close()
+ return true
+ end
+ end,
+ isdir=function(name)
+ print("you need to load lfs")
+ return false
+ end
+ }
+elseif not lfs.isfile then
+ local attributes=lfs.attributes
+ function lfs.isdir(name)
+ return attributes(name,"mode")=="directory"
+ end
+ function lfs.isfile(name)
+ return attributes(name,"mode")=="file"
+ end
+end
+local insert,concat=table.insert,table.concat
+local match,find,gmatch=string.match,string.find,string.gmatch
+local lpegmatch=lpeg.match
+local getcurrentdir,attributes=lfs.currentdir,lfs.attributes
+local checkedsplit=string.checkedsplit
+local P,R,S,C,Cs,Cp,Cc,Ct=lpeg.P,lpeg.R,lpeg.S,lpeg.C,lpeg.Cs,lpeg.Cp,lpeg.Cc,lpeg.Ct
+local colon=P(":")
+local period=P(".")
+local periods=P("..")
+local fwslash=P("/")
+local bwslash=P("\\")
+local slashes=S("\\/")
+local noperiod=1-period
+local noslashes=1-slashes
+local name=noperiod^1
+local suffix=period/""*(1-period-slashes)^1*-1
+local pattern=C((1-(slashes^1*noslashes^1*-1))^1)*P(1)
+local function pathpart(name,default)
+ return name and lpegmatch(pattern,name) or default or ""
+end
+local pattern=(noslashes^0*slashes)^1*C(noslashes^1)*-1
+local function basename(name)
+ return name and lpegmatch(pattern,name) or name
+end
+local pattern=(noslashes^0*slashes^1)^0*Cs((1-suffix)^1)*suffix^0
+local function nameonly(name)
+ return name and lpegmatch(pattern,name) or name
+end
+local pattern=(noslashes^0*slashes)^0*(noperiod^1*period)^1*C(noperiod^1)*-1
+local function suffixonly(name)
+ return name and lpegmatch(pattern,name) or ""
+end
+local pattern=(noslashes^0*slashes)^0*noperiod^1*((period*C(noperiod^1))^1)*-1+Cc("")
+local function suffixesonly(name)
+ if name then
+ return lpegmatch(pattern,name)
+ else
+ return ""
+ end
+end
+file.pathpart=pathpart
+file.basename=basename
+file.nameonly=nameonly
+file.suffixonly=suffixonly
+file.suffix=suffixonly
+file.suffixesonly=suffixesonly
+file.suffixes=suffixesonly
+file.dirname=pathpart
+file.extname=suffixonly
+local drive=C(R("az","AZ"))*colon
+local path=C((noslashes^0*slashes)^0)
+local suffix=period*C(P(1-period)^0*P(-1))
+local base=C((1-suffix)^0)
+local rest=C(P(1)^0)
+drive=drive+Cc("")
+path=path+Cc("")
+base=base+Cc("")
+suffix=suffix+Cc("")
+local pattern_a=drive*path*base*suffix
+local pattern_b=path*base*suffix
+local pattern_c=C(drive*path)*C(base*suffix)
+local pattern_d=path*rest
+function file.splitname(str,splitdrive)
+ if not str then
+ elseif splitdrive then
+ return lpegmatch(pattern_a,str)
+ else
+ return lpegmatch(pattern_b,str)
+ end
+end
+function file.splitbase(str)
+ if str then
+ return lpegmatch(pattern_d,str)
+ else
+ return "",str
+ end
+end
+function file.nametotable(str,splitdrive)
+ if str then
+ local path,drive,subpath,name,base,suffix=lpegmatch(pattern_c,str)
+ if splitdrive then
+ return {
+ path=path,
+ drive=drive,
+ subpath=subpath,
+ name=name,
+ base=base,
+ suffix=suffix,
+ }
+ else
+ return {
+ path=path,
+ name=name,
+ base=base,
+ suffix=suffix,
+ }
+ end
+ end
+end
+local pattern=Cs(((period*(1-period-slashes)^1*-1)/""+1)^1)
+function file.removesuffix(name)
+ return name and lpegmatch(pattern,name)
+end
+local suffix=period/""*(1-period-slashes)^1*-1
+local pattern=Cs((noslashes^0*slashes^1)^0*((1-suffix)^1))*Cs(suffix)
+function file.addsuffix(filename,suffix,criterium)
+ if not filename or not suffix or suffix=="" then
+ return filename
+ elseif criterium==true then
+ return filename.."."..suffix
+ elseif not criterium then
+ local n,s=lpegmatch(pattern,filename)
+ if not s or s=="" then
+ return filename.."."..suffix
+ else
+ return filename
+ end
+ else
+ local n,s=lpegmatch(pattern,filename)
+ if s and s~="" then
+ local t=type(criterium)
+ if t=="table" then
+ for i=1,#criterium do
+ if s==criterium[i] then
+ return filename
+ end
+ end
+ elseif t=="string" then
+ if s==criterium then
+ return filename
+ end
+ end
+ end
+ return (n or filename).."."..suffix
+ end
+end
+local suffix=period*(1-period-slashes)^1*-1
+local pattern=Cs((1-suffix)^0)
+function file.replacesuffix(name,suffix)
+ if name and suffix and suffix~="" then
+ return lpegmatch(pattern,name).."."..suffix
+ else
+ return name
+ end
+end
+local reslasher=lpeg.replacer(P("\\"),"/")
+function file.reslash(str)
+ return str and lpegmatch(reslasher,str)
+end
+function file.is_writable(name)
+ if not name then
+ elseif lfs.isdir(name) then
+ name=name.."/m_t_x_t_e_s_t.tmp"
+ local f=io.open(name,"wb")
+ if f then
+ f:close()
+ os.remove(name)
+ return true
+ end
+ elseif lfs.isfile(name) then
+ local f=io.open(name,"ab")
+ if f then
+ f:close()
+ return true
+ end
+ else
+ local f=io.open(name,"ab")
+ if f then
+ f:close()
+ os.remove(name)
+ return true
+ end
+ end
+ return false
+end
+local readable=P("r")*Cc(true)
+function file.is_readable(name)
+ if name then
+ local a=attributes(name)
+ return a and lpegmatch(readable,a.permissions) or false
+ else
+ return false
+ end
+end
+file.isreadable=file.is_readable
+file.iswritable=file.is_writable
+function file.size(name)
+ if name then
+ local a=attributes(name)
+ return a and a.size or 0
+ else
+ return 0
+ end
+end
+function file.splitpath(str,separator)
+ return str and checkedsplit(lpegmatch(reslasher,str),separator or io.pathseparator)
+end
+function file.joinpath(tab,separator)
+ return tab and concat(tab,separator or io.pathseparator)
+end
+local someslash=S("\\/")
+local stripper=Cs(P(fwslash)^0/""*reslasher)
+local isnetwork=someslash*someslash*(1-someslash)+(1-fwslash-colon)^1*colon
+local isroot=fwslash^1*-1
+local hasroot=fwslash^1
+local reslasher=lpeg.replacer(S("\\/"),"/")
+local deslasher=lpeg.replacer(S("\\/")^1,"/")
+function file.join(one,two,three,...)
+ if not two then
+ return one=="" and one or lpegmatch(stripper,one)
+ end
+ if one=="" then
+ return lpegmatch(stripper,three and concat({ two,three,... },"/") or two)
+ end
+ if lpegmatch(isnetwork,one) then
+ local one=lpegmatch(reslasher,one)
+ local two=lpegmatch(deslasher,three and concat({ two,three,... },"/") or two)
+ if lpegmatch(hasroot,two) then
+ return one..two
+ else
+ return one.."/"..two
+ end
+ elseif lpegmatch(isroot,one) then
+ local two=lpegmatch(deslasher,three and concat({ two,three,... },"/") or two)
+ if lpegmatch(hasroot,two) then
+ return two
+ else
+ return "/"..two
+ end
+ else
+ return lpegmatch(deslasher,concat({ one,two,three,... },"/"))
+ end
+end
+local drivespec=R("az","AZ")^1*colon
+local anchors=fwslash+drivespec
+local untouched=periods+(1-period)^1*P(-1)
+local mswindrive=Cs(drivespec*(bwslash/"/"+fwslash)^0)
+local mswinuncpath=(bwslash+fwslash)*(bwslash+fwslash)*Cc("//")
+local splitstarter=(mswindrive+mswinuncpath+Cc(false))*Ct(lpeg.splitat(S("/\\")^1))
+local absolute=fwslash
+function file.collapsepath(str,anchor)
+ if not str then
+ return
+ end
+ if anchor==true and not lpegmatch(anchors,str) then
+ str=getcurrentdir().."/"..str
+ end
+ if str=="" or str=="." then
+ return "."
+ elseif lpegmatch(untouched,str) then
+ return lpegmatch(reslasher,str)
+ end
+ local starter,oldelements=lpegmatch(splitstarter,str)
+ local newelements={}
+ local i=#oldelements
+ while i>0 do
+ local element=oldelements[i]
+ if element=='.' then
+ elseif element=='..' then
+ local n=i-1
+ while n>0 do
+ local element=oldelements[n]
+ if element~='..' and element~='.' then
+ oldelements[n]='.'
+ break
+ else
+ n=n-1
+ end
+ end
+ if n<1 then
+ insert(newelements,1,'..')
+ end
+ elseif element~="" then
+ insert(newelements,1,element)
+ end
+ i=i-1
+ end
+ if #newelements==0 then
+ return starter or "."
+ elseif starter then
+ return starter..concat(newelements,'/')
+ elseif lpegmatch(absolute,str) then
+ return "/"..concat(newelements,'/')
+ else
+ newelements=concat(newelements,'/')
+ if anchor=="." and find(str,"^%./") then
+ return "./"..newelements
+ else
+ return newelements
+ end
+ end
+end
+local tricky=S("/\\")*P(-1)
+local attributes=lfs.attributes
+function lfs.isdir(name)
+ if lpegmatch(tricky,name) then
+ return attributes(name,"mode")=="directory"
+ else
+ return attributes(name.."/.","mode")=="directory"
+ end
+end
+function lfs.isfile(name)
+ return attributes(name,"mode")=="file"
+end
+local validchars=R("az","09","AZ","--","..")
+local pattern_a=lpeg.replacer(1-validchars)
+local pattern_a=Cs((validchars+P(1)/"-")^1)
+local whatever=P("-")^0/""
+local pattern_b=Cs(whatever*(1-whatever*-1)^1)
+function file.robustname(str,strict)
+ if str then
+ str=lpegmatch(pattern_a,str) or str
+ if strict then
+ return lpegmatch(pattern_b,str) or str
+ else
+ return str
+ end
+ end
+end
+file.readdata=io.loaddata
+file.savedata=io.savedata
+function file.copy(oldname,newname)
+ if oldname and newname then
+ local data=io.loaddata(oldname)
+ if data and data~="" then
+ file.savedata(newname,data)
+ end
+ end
+end
+local letter=R("az","AZ")+S("_-+")
+local separator=P("://")
+local qualified=period^0*fwslash+letter*colon+letter^1*separator+letter^1*fwslash
+local rootbased=fwslash+letter*colon
+lpeg.patterns.qualified=qualified
+lpeg.patterns.rootbased=rootbased
+function file.is_qualified_path(filename)
+ return filename and lpegmatch(qualified,filename)~=nil
+end
+function file.is_rootbased_path(filename)
+ return filename and lpegmatch(rootbased,filename)~=nil
+end
+function file.strip(name,dir)
+ if name then
+ local b,a=match(name,"^(.-)"..dir.."(.*)$")
+ return a~="" and a or name
+ end
+end
+function lfs.mkdirs(path)
+ local full=""
+ for sub in gmatch(path,"(/*[^\\/]+)") do
+ full=full..sub
+ lfs.mkdir(full)
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['l-boolean']={
+ version=1.001,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local type,tonumber=type,tonumber
+boolean=boolean or {}
+local boolean=boolean
+function boolean.tonumber(b)
+ if b then return 1 else return 0 end
+end
+function toboolean(str,tolerant)
+ if str==nil then
+ return false
+ elseif str==false then
+ return false
+ elseif str==true then
+ return true
+ elseif str=="true" then
+ return true
+ elseif str=="false" then
+ return false
+ elseif not tolerant then
+ return false
+ elseif str==0 then
+ return false
+ elseif (tonumber(str) or 0)>0 then
+ return true
+ else
+ return str=="yes" or str=="on" or str=="t"
+ end
+end
+string.toboolean=toboolean
+function string.booleanstring(str)
+ if str=="0" then
+ return false
+ elseif str=="1" then
+ return true
+ elseif str=="" then
+ return false
+ elseif str=="false" then
+ return false
+ elseif str=="true" then
+ return true
+ elseif (tonumber(str) or 0)>0 then
+ return true
+ else
+ return str=="yes" or str=="on" or str=="t"
+ end
+end
+function string.is_boolean(str,default)
+ if type(str)=="string" then
+ if str=="true" or str=="yes" or str=="on" or str=="t" or str=="1" then
+ return true
+ elseif str=="false" or str=="no" or str=="off" or str=="f" or str=="0" then
+ return false
+ end
+ end
+ return default
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['l-math']={
+ version=1.001,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local floor,sin,cos,tan=math.floor,math.sin,math.cos,math.tan
+if not math.round then
+ function math.round(x) return floor(x+0.5) end
+end
+if not math.div then
+ function math.div(n,m) return floor(n/m) end
+end
+if not math.mod then
+ function math.mod(n,m) return n%m end
+end
+local pipi=2*math.pi/360
+if not math.sind then
+ function math.sind(d) return sin(d*pipi) end
+ function math.cosd(d) return cos(d*pipi) end
+ function math.tand(d) return tan(d*pipi) end
+end
+if not math.odd then
+ function math.odd (n) return n%2~=0 end
+ function math.even(n) return n%2==0 end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['util-str']={
+ version=1.001,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+utilities=utilities or {}
+utilities.strings=utilities.strings or {}
+local strings=utilities.strings
+local format,gsub,rep,sub=string.format,string.gsub,string.rep,string.sub
+local load,dump=load,string.dump
+local tonumber,type,tostring=tonumber,type,tostring
+local unpack,concat=table.unpack,table.concat
+local P,V,C,S,R,Ct,Cs,Cp,Carg,Cc=lpeg.P,lpeg.V,lpeg.C,lpeg.S,lpeg.R,lpeg.Ct,lpeg.Cs,lpeg.Cp,lpeg.Carg,lpeg.Cc
+local patterns,lpegmatch=lpeg.patterns,lpeg.match
+local utfchar,utfbyte=utf.char,utf.byte
+local loadstripped=nil
+if _LUAVERSION<5.2 then
+ loadstripped=function(str,shortcuts)
+ return load(str)
+ end
+else
+ loadstripped=function(str,shortcuts)
+ if shortcuts then
+ return load(dump(load(str),true),nil,nil,shortcuts)
+ else
+ return load(dump(load(str),true))
+ end
+ end
+end
+if not number then number={} end
+local stripper=patterns.stripzeros
+local function points(n)
+ n=tonumber(n)
+ return (not n or n==0) and "0pt" or lpegmatch(stripper,format("%.5fpt",n/65536))
+end
+local function basepoints(n)
+ n=tonumber(n)
+ return (not n or n==0) and "0bp" or lpegmatch(stripper,format("%.5fbp",n*(7200/7227)/65536))
+end
+number.points=points
+number.basepoints=basepoints
+local rubish=patterns.spaceortab^0*patterns.newline
+local anyrubish=patterns.spaceortab+patterns.newline
+local anything=patterns.anything
+local stripped=(patterns.spaceortab^1/"")*patterns.newline
+local leading=rubish^0/""
+local trailing=(anyrubish^1*patterns.endofstring)/""
+local redundant=rubish^3/"\n"
+local pattern=Cs(leading*(trailing+redundant+stripped+anything)^0)
+function strings.collapsecrlf(str)
+ return lpegmatch(pattern,str)
+end
+local repeaters={}
+function strings.newrepeater(str,offset)
+ offset=offset or 0
+ local s=repeaters[str]
+ if not s then
+ s={}
+ repeaters[str]=s
+ end
+ local t=s[offset]
+ if t then
+ return t
+ end
+ t={}
+ setmetatable(t,{ __index=function(t,k)
+ if not k then
+ return ""
+ end
+ local n=k+offset
+ local s=n>0 and rep(str,n) or ""
+ t[k]=s
+ return s
+ end })
+ s[offset]=t
+ return t
+end
+local extra,tab,start=0,0,4,0
+local nspaces=strings.newrepeater(" ")
+string.nspaces=nspaces
+local pattern=Carg(1)/function(t)
+ extra,tab,start=0,t or 7,1
+ end*Cs((
+ Cp()*patterns.tab/function(position)
+ local current=(position-start+1)+extra
+ local spaces=tab-(current-1)%tab
+ if spaces>0 then
+ extra=extra+spaces-1
+ return nspaces[spaces]
+ else
+ return ""
+ end
+ end+patterns.newline*Cp()/function(position)
+ extra,start=0,position
+ end+patterns.anything
+ )^1)
+function strings.tabtospace(str,tab)
+ return lpegmatch(pattern,str,1,tab or 7)
+end
+local newline=patterns.newline
+local endofstring=patterns.endofstring
+local whitespace=patterns.whitespace
+local spacer=patterns.spacer
+local space=spacer^0
+local nospace=space/""
+local endofline=nospace*newline
+local stripend=(whitespace^1*endofstring)/""
+local normalline=(nospace*((1-space*(newline+endofstring))^1)*nospace)
+local stripempty=endofline^1/""
+local normalempty=endofline^1
+local singleempty=endofline*(endofline^0/"")
+local doubleempty=endofline*endofline^-1*(endofline^0/"")
+local stripstart=stripempty^0
+local p_prune_normal=Cs (stripstart*(stripend+normalline+normalempty )^0 )
+local p_prune_collapse=Cs (stripstart*(stripend+normalline+doubleempty )^0 )
+local p_prune_noempty=Cs (stripstart*(stripend+normalline+singleempty )^0 )
+local p_retain_normal=Cs ((normalline+normalempty )^0 )
+local p_retain_collapse=Cs ((normalline+doubleempty )^0 )
+local p_retain_noempty=Cs ((normalline+singleempty )^0 )
+local striplinepatterns={
+ ["prune"]=p_prune_normal,
+ ["prune and collapse"]=p_prune_collapse,
+ ["prune and no empty"]=p_prune_noempty,
+ ["retain"]=p_retain_normal,
+ ["retain and collapse"]=p_retain_collapse,
+ ["retain and no empty"]=p_retain_noempty,
+ ["collapse"]=patterns.collapser,
+}
+strings.striplinepatterns=striplinepatterns
+function strings.striplines(str,how)
+ return str and lpegmatch(how and striplinepatterns[how] or p_prune_collapse,str) or str
+end
+strings.striplong=strings.striplines
+function strings.nice(str)
+ str=gsub(str,"[:%-+_]+"," ")
+ return str
+end
+local n=0
+local sequenced=table.sequenced
+function string.autodouble(s,sep)
+ if s==nil then
+ return '""'
+ end
+ local t=type(s)
+ if t=="number" then
+ return tostring(s)
+ end
+ if t=="table" then
+ return ('"'..sequenced(s,sep or ",")..'"')
+ end
+ return ('"'..tostring(s)..'"')
+end
+function string.autosingle(s,sep)
+ if s==nil then
+ return "''"
+ end
+ local t=type(s)
+ if t=="number" then
+ return tostring(s)
+ end
+ if t=="table" then
+ return ("'"..sequenced(s,sep or ",").."'")
+ end
+ return ("'"..tostring(s).."'")
+end
+local tracedchars={}
+string.tracedchars=tracedchars
+strings.tracers=tracedchars
+function string.tracedchar(b)
+ if type(b)=="number" then
+ return tracedchars[b] or (utfchar(b).." (U+"..format('%05X',b)..")")
+ else
+ local c=utfbyte(b)
+ return tracedchars[c] or (b.." (U+"..format('%05X',c)..")")
+ end
+end
+function number.signed(i)
+ if i>0 then
+ return "+",i
+ else
+ return "-",-i
+ end
+end
+local zero=P("0")^1/""
+local plus=P("+")/""
+local minus=P("-")
+local separator=S(".")
+local digit=R("09")
+local trailing=zero^1*#S("eE")
+local exponent=(S("eE")*(plus+Cs((minus*zero^0*P(-1))/"")+minus)*zero^0*(P(-1)*Cc("0")+P(1)^1))
+local pattern_a=Cs(minus^0*digit^1*(separator/""*trailing+separator*(trailing+digit)^0)*exponent)
+local pattern_b=Cs((exponent+P(1))^0)
+function number.sparseexponent(f,n)
+ if not n then
+ n=f
+ f="%e"
+ end
+ local tn=type(n)
+ if tn=="string" then
+ local m=tonumber(n)
+ if m then
+ return lpegmatch((f=="%e" or f=="%E") and pattern_a or pattern_b,format(f,m))
+ end
+ elseif tn=="number" then
+ return lpegmatch((f=="%e" or f=="%E") and pattern_a or pattern_b,format(f,n))
+ end
+ return tostring(n)
+end
+local template=[[
+%s
+%s
+return function(%s) return %s end
+]]
+local preamble,environment="",{}
+if _LUAVERSION<5.2 then
+ preamble=[[
+local lpeg=lpeg
+local type=type
+local tostring=tostring
+local tonumber=tonumber
+local format=string.format
+local concat=table.concat
+local signed=number.signed
+local points=number.points
+local basepoints= number.basepoints
+local utfchar=utf.char
+local utfbyte=utf.byte
+local lpegmatch=lpeg.match
+local nspaces=string.nspaces
+local tracedchar=string.tracedchar
+local autosingle=string.autosingle
+local autodouble=string.autodouble
+local sequenced=table.sequenced
+local formattednumber=number.formatted
+local sparseexponent=number.sparseexponent
+ ]]
+else
+ environment={
+ global=global or _G,
+ lpeg=lpeg,
+ type=type,
+ tostring=tostring,
+ tonumber=tonumber,
+ format=string.format,
+ concat=table.concat,
+ signed=number.signed,
+ points=number.points,
+ basepoints=number.basepoints,
+ utfchar=utf.char,
+ utfbyte=utf.byte,
+ lpegmatch=lpeg.match,
+ nspaces=string.nspaces,
+ tracedchar=string.tracedchar,
+ autosingle=string.autosingle,
+ autodouble=string.autodouble,
+ sequenced=table.sequenced,
+ formattednumber=number.formatted,
+ sparseexponent=number.sparseexponent,
+ }
+end
+local arguments={ "a1" }
+setmetatable(arguments,{ __index=function(t,k)
+ local v=t[k-1]..",a"..k
+ t[k]=v
+ return v
+ end
+})
+local prefix_any=C((S("+- .")+R("09"))^0)
+local prefix_tab=P("{")*C((1-P("}"))^0)*P("}")+C((1-R("az","AZ","09","%%"))^0)
+local format_s=function(f)
+ n=n+1
+ if f and f~="" then
+ return format("format('%%%ss',a%s)",f,n)
+ else
+ return format("(a%s or '')",n)
+ end
+end
+local format_S=function(f)
+ n=n+1
+ if f and f~="" then
+ return format("format('%%%ss',tostring(a%s))",f,n)
+ else
+ return format("tostring(a%s)",n)
+ end
+end
+local format_q=function()
+ n=n+1
+ return format("(a%s and format('%%q',a%s) or '')",n,n)
+end
+local format_Q=function()
+ n=n+1
+ return format("format('%%q',tostring(a%s))",n)
+end
+local format_i=function(f)
+ n=n+1
+ if f and f~="" then
+ return format("format('%%%si',a%s)",f,n)
+ else
+ return format("format('%%i',a%s)",n)
+ end
+end
+local format_d=format_i
+local format_I=function(f)
+ n=n+1
+ return format("format('%%s%%%si',signed(a%s))",f,n)
+end
+local format_f=function(f)
+ n=n+1
+ return format("format('%%%sf',a%s)",f,n)
+end
+local format_F=function()
+ n=n+1
+ if not f or f=="" then
+ return format("(((a%s > -0.0000000005 and a%s < 0.0000000005) and '0') or format((a%s %% 1 == 0) and '%%i' or '%%.9f',a%s))",n,n,n,n)
+ else
+ return format("format((a%s %% 1 == 0) and '%%i' or '%%%sf',a%s)",n,f,n)
+ end
+end
+local format_g=function(f)
+ n=n+1
+ return format("format('%%%sg',a%s)",f,n)
+end
+local format_G=function(f)
+ n=n+1
+ return format("format('%%%sG',a%s)",f,n)
+end
+local format_e=function(f)
+ n=n+1
+ return format("format('%%%se',a%s)",f,n)
+end
+local format_E=function(f)
+ n=n+1
+ return format("format('%%%sE',a%s)",f,n)
+end
+local format_j=function(f)
+ n=n+1
+ return format("sparseexponent('%%%se',a%s)",f,n)
+end
+local format_J=function(f)
+ n=n+1
+ return format("sparseexponent('%%%sE',a%s)",f,n)
+end
+local format_x=function(f)
+ n=n+1
+ return format("format('%%%sx',a%s)",f,n)
+end
+local format_X=function(f)
+ n=n+1
+ return format("format('%%%sX',a%s)",f,n)
+end
+local format_o=function(f)
+ n=n+1
+ return format("format('%%%so',a%s)",f,n)
+end
+local format_c=function()
+ n=n+1
+ return format("utfchar(a%s)",n)
+end
+local format_C=function()
+ n=n+1
+ return format("tracedchar(a%s)",n)
+end
+local format_r=function(f)
+ n=n+1
+ return format("format('%%%s.0f',a%s)",f,n)
+end
+local format_h=function(f)
+ n=n+1
+ if f=="-" then
+ f=sub(f,2)
+ return format("format('%%%sx',type(a%s) == 'number' and a%s or utfbyte(a%s))",f=="" and "05" or f,n,n,n)
+ else
+ return format("format('0x%%%sx',type(a%s) == 'number' and a%s or utfbyte(a%s))",f=="" and "05" or f,n,n,n)
+ end
+end
+local format_H=function(f)
+ n=n+1
+ if f=="-" then
+ f=sub(f,2)
+ return format("format('%%%sX',type(a%s) == 'number' and a%s or utfbyte(a%s))",f=="" and "05" or f,n,n,n)
+ else
+ return format("format('0x%%%sX',type(a%s) == 'number' and a%s or utfbyte(a%s))",f=="" and "05" or f,n,n,n)
+ end
+end
+local format_u=function(f)
+ n=n+1
+ if f=="-" then
+ f=sub(f,2)
+ return format("format('%%%sx',type(a%s) == 'number' and a%s or utfbyte(a%s))",f=="" and "05" or f,n,n,n)
+ else
+ return format("format('u+%%%sx',type(a%s) == 'number' and a%s or utfbyte(a%s))",f=="" and "05" or f,n,n,n)
+ end
+end
+local format_U=function(f)
+ n=n+1
+ if f=="-" then
+ f=sub(f,2)
+ return format("format('%%%sX',type(a%s) == 'number' and a%s or utfbyte(a%s))",f=="" and "05" or f,n,n,n)
+ else
+ return format("format('U+%%%sX',type(a%s) == 'number' and a%s or utfbyte(a%s))",f=="" and "05" or f,n,n,n)
+ end
+end
+local format_p=function()
+ n=n+1
+ return format("points(a%s)",n)
+end
+local format_b=function()
+ n=n+1
+ return format("basepoints(a%s)",n)
+end
+local format_t=function(f)
+ n=n+1
+ if f and f~="" then
+ return format("concat(a%s,%q)",n,f)
+ else
+ return format("concat(a%s)",n)
+ end
+end
+local format_T=function(f)
+ n=n+1
+ if f and f~="" then
+ return format("sequenced(a%s,%q)",n,f)
+ else
+ return format("sequenced(a%s)",n)
+ end
+end
+local format_l=function()
+ n=n+1
+ return format("(a%s and 'true' or 'false')",n)
+end
+local format_L=function()
+ n=n+1
+ return format("(a%s and 'TRUE' or 'FALSE')",n)
+end
+local format_N=function()
+ n=n+1
+ return format("tostring(tonumber(a%s) or a%s)",n,n)
+end
+local format_a=function(f)
+ n=n+1
+ if f and f~="" then
+ return format("autosingle(a%s,%q)",n,f)
+ else
+ return format("autosingle(a%s)",n)
+ end
+end
+local format_A=function(f)
+ n=n+1
+ if f and f~="" then
+ return format("autodouble(a%s,%q)",n,f)
+ else
+ return format("autodouble(a%s)",n)
+ end
+end
+local format_w=function(f)
+ n=n+1
+ f=tonumber(f)
+ if f then
+ return format("nspaces[%s+a%s]",f,n)
+ else
+ return format("nspaces[a%s]",n)
+ end
+end
+local format_W=function(f)
+ return format("nspaces[%s]",tonumber(f) or 0)
+end
+local digit=patterns.digit
+local period=patterns.period
+local three=digit*digit*digit
+local splitter=Cs (
+ (((1-(three^1*period))^1+C(three))*(Carg(1)*three)^1+C((1-period)^1))*(P(1)/""*Carg(2))*C(2)
+)
+patterns.formattednumber=splitter
+function number.formatted(n,sep1,sep2)
+ local s=type(s)=="string" and n or format("%0.2f",n)
+ if sep1==true then
+ return lpegmatch(splitter,s,1,".",",")
+ elseif sep1=="." then
+ return lpegmatch(splitter,s,1,sep1,sep2 or ",")
+ elseif sep1=="," then
+ return lpegmatch(splitter,s,1,sep1,sep2 or ".")
+ else
+ return lpegmatch(splitter,s,1,sep1 or ",",sep2 or ".")
+ end
+end
+local format_m=function(f)
+ n=n+1
+ if not f or f=="" then
+ f=","
+ end
+ return format([[formattednumber(a%s,%q,".")]],n,f)
+end
+local format_M=function(f)
+ n=n+1
+ if not f or f=="" then
+ f="."
+ end
+ return format([[formattednumber(a%s,%q,",")]],n,f)
+end
+local format_z=function(f)
+ n=n+(tonumber(f) or 1)
+ return "''"
+end
+local format_rest=function(s)
+ return format("%q",s)
+end
+local format_extension=function(extensions,f,name)
+ local extension=extensions[name] or "tostring(%s)"
+ local f=tonumber(f) or 1
+ if f==0 then
+ return extension
+ elseif f==1 then
+ n=n+1
+ local a="a"..n
+ return format(extension,a,a)
+ elseif f<0 then
+ local a="a"..(n+f+1)
+ return format(extension,a,a)
+ else
+ local t={}
+ for i=1,f do
+ n=n+1
+ t[#t+1]="a"..n
+ end
+ return format(extension,unpack(t))
+ end
+end
+local builder=Cs { "start",
+ start=(
+ (
+ P("%")/""*(
+ V("!")
++V("s")+V("q")+V("i")+V("d")+V("f")+V("F")+V("g")+V("G")+V("e")+V("E")+V("x")+V("X")+V("o")
++V("c")+V("C")+V("S")
++V("Q")
++V("N")
++V("r")+V("h")+V("H")+V("u")+V("U")+V("p")+V("b")+V("t")+V("T")+V("l")+V("L")+V("I")+V("w")
++V("W")
++V("a")
++V("A")
++V("j")+V("J")
++V("m")+V("M")
++V("z")
++V("*")
+ )+V("*")
+ )*(P(-1)+Carg(1))
+ )^0,
+ ["s"]=(prefix_any*P("s"))/format_s,
+ ["q"]=(prefix_any*P("q"))/format_q,
+ ["i"]=(prefix_any*P("i"))/format_i,
+ ["d"]=(prefix_any*P("d"))/format_d,
+ ["f"]=(prefix_any*P("f"))/format_f,
+ ["F"]=(prefix_any*P("F"))/format_F,
+ ["g"]=(prefix_any*P("g"))/format_g,
+ ["G"]=(prefix_any*P("G"))/format_G,
+ ["e"]=(prefix_any*P("e"))/format_e,
+ ["E"]=(prefix_any*P("E"))/format_E,
+ ["x"]=(prefix_any*P("x"))/format_x,
+ ["X"]=(prefix_any*P("X"))/format_X,
+ ["o"]=(prefix_any*P("o"))/format_o,
+ ["S"]=(prefix_any*P("S"))/format_S,
+ ["Q"]=(prefix_any*P("Q"))/format_S,
+ ["N"]=(prefix_any*P("N"))/format_N,
+ ["c"]=(prefix_any*P("c"))/format_c,
+ ["C"]=(prefix_any*P("C"))/format_C,
+ ["r"]=(prefix_any*P("r"))/format_r,
+ ["h"]=(prefix_any*P("h"))/format_h,
+ ["H"]=(prefix_any*P("H"))/format_H,
+ ["u"]=(prefix_any*P("u"))/format_u,
+ ["U"]=(prefix_any*P("U"))/format_U,
+ ["p"]=(prefix_any*P("p"))/format_p,
+ ["b"]=(prefix_any*P("b"))/format_b,
+ ["t"]=(prefix_tab*P("t"))/format_t,
+ ["T"]=(prefix_tab*P("T"))/format_T,
+ ["l"]=(prefix_any*P("l"))/format_l,
+ ["L"]=(prefix_any*P("L"))/format_L,
+ ["I"]=(prefix_any*P("I"))/format_I,
+ ["w"]=(prefix_any*P("w"))/format_w,
+ ["W"]=(prefix_any*P("W"))/format_W,
+ ["j"]=(prefix_any*P("j"))/format_j,
+ ["J"]=(prefix_any*P("J"))/format_J,
+ ["m"]=(prefix_tab*P("m"))/format_m,
+ ["M"]=(prefix_tab*P("M"))/format_M,
+ ["z"]=(prefix_any*P("z"))/format_z,
+ ["a"]=(prefix_any*P("a"))/format_a,
+ ["A"]=(prefix_any*P("A"))/format_A,
+ ["*"]=Cs(((1-P("%"))^1+P("%%")/"%%")^1)/format_rest,
+ ["!"]=Carg(2)*prefix_any*P("!")*C((1-P("!"))^1)*P("!")/format_extension,
+}
+local direct=Cs (
+ P("%")*(S("+- .")+R("09"))^0*S("sqidfgGeExXo")*P(-1)/[[local format = string.format return function(str) return format("%0",str) end]]
+)
+local function make(t,str)
+ local f
+ local p
+ local p=lpegmatch(direct,str)
+ if p then
+ f=loadstripped(p)()
+ else
+ n=0
+ p=lpegmatch(builder,str,1,t._connector_,t._extensions_)
+ if n>0 then
+ p=format(template,preamble,t._preamble_,arguments[n],p)
+ f=loadstripped(p,t._environment_)()
+ else
+ f=function() return str end
+ end
+ end
+ t[str]=f
+ return f
+end
+local function use(t,fmt,...)
+ return t[fmt](...)
+end
+strings.formatters={}
+if _LUAVERSION<5.2 then
+ function strings.formatters.new(noconcat)
+ local t={ _type_="formatter",_connector_=noconcat and "," or "..",_extensions_={},_preamble_=preamble,_environment_={} }
+ setmetatable(t,{ __index=make,__call=use })
+ return t
+ end
+else
+ function strings.formatters.new(noconcat)
+ local e={}
+ for k,v in next,environment do
+ e[k]=v
+ end
+ local t={ _type_="formatter",_connector_=noconcat and "," or "..",_extensions_={},_preamble_="",_environment_=e }
+ setmetatable(t,{ __index=make,__call=use })
+ return t
+ end
+end
+local formatters=strings.formatters.new()
+string.formatters=formatters
+string.formatter=function(str,...) return formatters[str](...) end
+local function add(t,name,template,preamble)
+ if type(t)=="table" and t._type_=="formatter" then
+ t._extensions_[name]=template or "%s"
+ if type(preamble)=="string" then
+ t._preamble_=preamble.."\n"..t._preamble_
+ elseif type(preamble)=="table" then
+ for k,v in next,preamble do
+ t._environment_[k]=v
+ end
+ end
+ end
+end
+strings.formatters.add=add
+patterns.xmlescape=Cs((P("<")/"&lt;"+P(">")/"&gt;"+P("&")/"&amp;"+P('"')/"&quot;"+P(1))^0)
+patterns.texescape=Cs((C(S("#$%\\{}"))/"\\%1"+P(1))^0)
+patterns.luaescape=Cs(((1-S('"\n'))^1+P('"')/'\\"'+P('\n')/'\\n"')^0)
+patterns.luaquoted=Cs(Cc('"')*((1-S('"\n'))^1+P('"')/'\\"'+P('\n')/'\\n"')^0*Cc('"'))
+if _LUAVERSION<5.2 then
+ add(formatters,"xml",[[lpegmatch(xmlescape,%s)]],"local xmlescape = lpeg.patterns.xmlescape")
+ add(formatters,"tex",[[lpegmatch(texescape,%s)]],"local texescape = lpeg.patterns.texescape")
+ add(formatters,"lua",[[lpegmatch(luaescape,%s)]],"local luaescape = lpeg.patterns.luaescape")
+else
+ add(formatters,"xml",[[lpegmatch(xmlescape,%s)]],{ xmlescape=lpeg.patterns.xmlescape })
+ add(formatters,"tex",[[lpegmatch(texescape,%s)]],{ texescape=lpeg.patterns.texescape })
+ add(formatters,"lua",[[lpegmatch(luaescape,%s)]],{ luaescape=lpeg.patterns.luaescape })
+end
+local dquote=patterns.dquote
+local equote=patterns.escaped+dquote/'\\"'+1
+local space=patterns.space
+local cquote=Cc('"')
+local pattern=Cs(dquote*(equote-P(-2))^0*dquote)
++Cs(cquote*(equote-space)^0*space*equote^0*cquote)
+function string.optionalquoted(str)
+ return lpegmatch(pattern,str) or str
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['luat-basics-gen']={
+ version=1.100,
+ comment="companion to luatex-*.tex",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+if context then
+ texio.write_nl("fatal error: this module is not for context")
+ os.exit()
+end
+local dummyfunction=function()
+end
+local dummyreporter=function(c)
+ return function(...)
+ (texio.reporter or texio.write_nl)(c.." : "..string.formatters(...))
+ end
+end
+statistics={
+ register=dummyfunction,
+ starttiming=dummyfunction,
+ stoptiming=dummyfunction,
+ elapsedtime=nil,
+}
+directives={
+ register=dummyfunction,
+ enable=dummyfunction,
+ disable=dummyfunction,
+}
+trackers={
+ register=dummyfunction,
+ enable=dummyfunction,
+ disable=dummyfunction,
+}
+experiments={
+ register=dummyfunction,
+ enable=dummyfunction,
+ disable=dummyfunction,
+}
+storage={
+ register=dummyfunction,
+ shared={},
+}
+logs={
+ new=dummyreporter,
+ reporter=dummyreporter,
+ messenger=dummyreporter,
+ report=dummyfunction,
+}
+callbacks={
+ register=function(n,f) return callback.register(n,f) end,
+}
+utilities={
+ storage={
+ allocate=function(t) return t or {} end,
+ mark=function(t) return t or {} end,
+ },
+}
+characters=characters or {
+ data={}
+}
+texconfig.kpse_init=true
+resolvers=resolvers or {}
+local remapper={
+ otf="opentype fonts",
+ ttf="truetype fonts",
+ ttc="truetype fonts",
+ dfont="truetype fonts",
+ cid="cid maps",
+ cidmap="cid maps",
+ fea="font feature files",
+ pfa="type1 fonts",
+ pfb="type1 fonts",
+ afm="afm",
+}
+function resolvers.findfile(name,fileformat)
+ name=string.gsub(name,"\\","/")
+ if not fileformat or fileformat=="" then
+ fileformat=file.suffix(name)
+ if fileformat=="" then
+ fileformat="tex"
+ end
+ end
+ fileformat=string.lower(fileformat)
+ fileformat=remapper[fileformat] or fileformat
+ local found=kpse.find_file(name,fileformat)
+ if not found or found=="" then
+ found=kpse.find_file(name,"other text files")
+ end
+ return found
+end
+resolvers.findbinfile=resolvers.findfile
+function resolvers.loadbinfile(filename,filetype)
+ local data=io.loaddata(filename)
+ return true,data,#data
+end
+function resolvers.resolve(s)
+ return s
+end
+function resolvers.unresolve(s)
+ return s
+end
+caches={}
+local writable=nil
+local readables={}
+local usingjit=jit
+if not caches.namespace or caches.namespace=="" or caches.namespace=="context" then
+ caches.namespace='generic'
+end
+do
+ local cachepaths=kpse.expand_var('$TEXMFCACHE') or ""
+ if cachepaths=="" or cachepaths=="$TEXMFCACHE" then
+ cachepaths=kpse.expand_var('$TEXMFVAR') or ""
+ end
+ if cachepaths=="" or cachepaths=="$TEXMFVAR" then
+ cachepaths=kpse.expand_var('$VARTEXMF') or ""
+ end
+ if cachepaths=="" then
+ local fallbacks={ "TMPDIR","TEMPDIR","TMP","TEMP","HOME","HOMEPATH" }
+ for i=1,#fallbacks do
+ cachepaths=os.getenv(fallbacks[i]) or ""
+ if cachepath~="" and lfs.isdir(cachepath) then
+ break
+ end
+ end
+ end
+ if cachepaths=="" then
+ cachepaths="."
+ end
+ cachepaths=string.split(cachepaths,os.type=="windows" and ";" or ":")
+ for i=1,#cachepaths do
+ local cachepath=cachepaths[i]
+ if not lfs.isdir(cachepath) then
+ lfs.mkdirs(cachepath)
+ if lfs.isdir(cachepath) then
+ texio.write(string.format("(created cache path: %s)",cachepath))
+ end
+ end
+ if file.is_writable(cachepath) then
+ writable=file.join(cachepath,"luatex-cache")
+ lfs.mkdir(writable)
+ writable=file.join(writable,caches.namespace)
+ lfs.mkdir(writable)
+ break
+ end
+ end
+ for i=1,#cachepaths do
+ if file.is_readable(cachepaths[i]) then
+ readables[#readables+1]=file.join(cachepaths[i],"luatex-cache",caches.namespace)
+ end
+ end
+ if not writable then
+ texio.write_nl("quiting: fix your writable cache path")
+ os.exit()
+ elseif #readables==0 then
+ texio.write_nl("quiting: fix your readable cache path")
+ os.exit()
+ elseif #readables==1 and readables[1]==writable then
+ texio.write(string.format("(using cache: %s)",writable))
+ else
+ texio.write(string.format("(using write cache: %s)",writable))
+ texio.write(string.format("(using read cache: %s)",table.concat(readables," ")))
+ end
+end
+function caches.getwritablepath(category,subcategory)
+ local path=file.join(writable,category)
+ lfs.mkdir(path)
+ path=file.join(path,subcategory)
+ lfs.mkdir(path)
+ return path
+end
+function caches.getreadablepaths(category,subcategory)
+ local t={}
+ for i=1,#readables do
+ t[i]=file.join(readables[i],category,subcategory)
+ end
+ return t
+end
+local function makefullname(path,name)
+ if path and path~="" then
+ return file.addsuffix(file.join(path,name),"lua"),file.addsuffix(file.join(path,name),usingjit and "lub" or "luc")
+ end
+end
+function caches.is_writable(path,name)
+ local fullname=makefullname(path,name)
+ return fullname and file.is_writable(fullname)
+end
+function caches.loaddata(paths,name)
+ for i=1,#paths do
+ local data=false
+ local luaname,lucname=makefullname(paths[i],name)
+ if lucname and not lfs.isfile(lucname) and type(caches.compile)=="function" then
+ texio.write(string.format("(compiling luc: %s)",lucname))
+ data=loadfile(luaname)
+ if data then
+ data=data()
+ end
+ if data then
+ caches.compile(data,luaname,lucname)
+ return data
+ end
+ end
+ if lucname and lfs.isfile(lucname) then
+ texio.write(string.format("(load luc: %s)",lucname))
+ data=loadfile(lucname)
+ if data then
+ data=data()
+ end
+ if data then
+ return data
+ else
+ texio.write(string.format("(loading failed: %s)",lucname))
+ end
+ end
+ if luaname and lfs.isfile(luaname) then
+ texio.write(string.format("(load lua: %s)",luaname))
+ data=loadfile(luaname)
+ if data then
+ data=data()
+ end
+ if data then
+ return data
+ end
+ end
+ end
+end
+function caches.savedata(path,name,data)
+ local luaname,lucname=makefullname(path,name)
+ if luaname then
+ texio.write(string.format("(save: %s)",luaname))
+ table.tofile(luaname,data,true)
+ if lucname and type(caches.compile)=="function" then
+ os.remove(lucname)
+ texio.write(string.format("(save: %s)",lucname))
+ caches.compile(data,luaname,lucname)
+ end
+ end
+end
+function caches.compile(data,luaname,lucname)
+ local d=io.loaddata(luaname)
+ if not d or d=="" then
+ d=table.serialize(data,true)
+ end
+ if d and d~="" then
+ local f=io.open(lucname,'wb')
+ if f then
+ local s=loadstring(d)
+ if s then
+ f:write(string.dump(s,true))
+ end
+ f:close()
+ end
+ end
+end
+function table.setmetatableindex(t,f)
+ setmetatable(t,{ __index=f })
+end
+arguments={}
+if arg then
+ for i=1,#arg do
+ local k,v=string.match(arg[i],"^%-%-([^=]+)=?(.-)$")
+ if k and v then
+ arguments[k]=v
+ end
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['data-con']={
+ version=1.100,
+ comment="companion to luat-lib.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local format,lower,gsub=string.format,string.lower,string.gsub
+local trace_cache=false trackers.register("resolvers.cache",function(v) trace_cache=v end)
+local trace_containers=false trackers.register("resolvers.containers",function(v) trace_containers=v end)
+local trace_storage=false trackers.register("resolvers.storage",function(v) trace_storage=v end)
+containers=containers or {}
+local containers=containers
+containers.usecache=true
+local report_containers=logs.reporter("resolvers","containers")
+local allocated={}
+local mt={
+ __index=function(t,k)
+ if k=="writable" then
+ local writable=caches.getwritablepath(t.category,t.subcategory) or { "." }
+ t.writable=writable
+ return writable
+ elseif k=="readables" then
+ local readables=caches.getreadablepaths(t.category,t.subcategory) or { "." }
+ t.readables=readables
+ return readables
+ end
+ end,
+ __storage__=true
+}
+function containers.define(category,subcategory,version,enabled)
+ if category and subcategory then
+ local c=allocated[category]
+ if not c then
+ c={}
+ allocated[category]=c
+ end
+ local s=c[subcategory]
+ if not s then
+ s={
+ category=category,
+ subcategory=subcategory,
+ storage={},
+ enabled=enabled,
+ version=version or math.pi,
+ trace=false,
+ }
+ setmetatable(s,mt)
+ c[subcategory]=s
+ end
+ return s
+ end
+end
+function containers.is_usable(container,name)
+ return container.enabled and caches and caches.is_writable(container.writable,name)
+end
+function containers.is_valid(container,name)
+ if name and name~="" then
+ local storage=container.storage[name]
+ return storage and storage.cache_version==container.version
+ else
+ return false
+ end
+end
+function containers.read(container,name)
+ local storage=container.storage
+ local stored=storage[name]
+ if not stored and container.enabled and caches and containers.usecache then
+ stored=caches.loaddata(container.readables,name)
+ if stored and stored.cache_version==container.version then
+ if trace_cache or trace_containers then
+ report_containers("action %a, category %a, name %a","load",container.subcategory,name)
+ end
+ else
+ stored=nil
+ end
+ storage[name]=stored
+ elseif stored then
+ if trace_cache or trace_containers then
+ report_containers("action %a, category %a, name %a","reuse",container.subcategory,name)
+ end
+ end
+ return stored
+end
+function containers.write(container,name,data)
+ if data then
+ data.cache_version=container.version
+ if container.enabled and caches then
+ local unique,shared=data.unique,data.shared
+ data.unique,data.shared=nil,nil
+ caches.savedata(container.writable,name,data)
+ if trace_cache or trace_containers then
+ report_containers("action %a, category %a, name %a","save",container.subcategory,name)
+ end
+ data.unique,data.shared=unique,shared
+ end
+ if trace_cache or trace_containers then
+ report_containers("action %a, category %a, name %a","store",container.subcategory,name)
+ end
+ container.storage[name]=data
+ end
+ return data
+end
+function containers.content(container,name)
+ return container.storage[name]
+end
+function containers.cleanname(name)
+ return (gsub(lower(name),"[^%w\128-\255]+","-"))
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['luatex-fonts-nod']={
+ version=1.001,
+ comment="companion to luatex-fonts.lua",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+if context then
+ texio.write_nl("fatal error: this module is not for context")
+ os.exit()
+end
+if tex.attribute[0]~=0 then
+ texio.write_nl("log","!")
+ texio.write_nl("log","! Attribute 0 is reserved for ConTeXt's font feature management and has to be")
+ texio.write_nl("log","! set to zero. Also, some attributes in the range 1-255 are used for special")
+ texio.write_nl("log","! purposes so setting them at the TeX end might break the font handler.")
+ texio.write_nl("log","!")
+ tex.attribute[0]=0
+end
+attributes=attributes or {}
+attributes.unsetvalue=-0x7FFFFFFF
+local numbers,last={},127
+attributes.private=attributes.private or function(name)
+ local number=numbers[name]
+ if not number then
+ if last<255 then
+ last=last+1
+ end
+ number=last
+ numbers[name]=number
+ end
+ return number
+end
+nodes={}
+nodes.pool={}
+nodes.handlers={}
+local nodecodes={} for k,v in next,node.types () do nodecodes[string.gsub(v,"_","")]=k end
+local whatcodes={} for k,v in next,node.whatsits() do whatcodes[string.gsub(v,"_","")]=k end
+local glyphcodes={ [0]="character","glyph","ligature","ghost","left","right" }
+local disccodes={ [0]="discretionary","explicit","automatic","regular","first","second" }
+nodes.nodecodes=nodecodes
+nodes.whatcodes=whatcodes
+nodes.whatsitcodes=whatcodes
+nodes.glyphcodes=glyphcodes
+nodes.disccodes=disccodes
+local free_node=node.free
+local remove_node=node.remove
+local new_node=node.new
+local traverse_id=node.traverse_id
+nodes.handlers.protectglyphs=node.protect_glyphs
+nodes.handlers.unprotectglyphs=node.unprotect_glyphs
+local math_code=nodecodes.math
+local end_of_math=node.end_of_math
+function node.end_of_math(n)
+ if n.id==math_code and n.subtype==1 then
+ return n
+ else
+ return end_of_math(n)
+ end
+end
+function nodes.remove(head,current,free_too)
+ local t=current
+ head,current=remove_node(head,current)
+ if t then
+ if free_too then
+ free_node(t)
+ t=nil
+ else
+ t.next,t.prev=nil,nil
+ end
+ end
+ return head,current,t
+end
+function nodes.delete(head,current)
+ return nodes.remove(head,current,true)
+end
+function nodes.pool.kern(k)
+ local n=new_node("kern",1)
+ n.kern=k
+ return n
+end
+local getfield=node.getfield or function(n,tag) return n[tag] end
+local setfield=node.setfield or function(n,tag,value) n[tag]=value end
+nodes.getfield=getfield
+nodes.setfield=setfield
+nodes.getattr=getfield
+nodes.setattr=setfield
+if node.getid then nodes.getid=node.getid else function nodes.getid (n) return getfield(n,"id") end end
+if node.getsubtype then nodes.getsubtype=node.getsubtype else function nodes.getsubtype(n) return getfield(n,"subtype") end end
+if node.getnext then nodes.getnext=node.getnext else function nodes.getnext (n) return getfield(n,"next") end end
+if node.getprev then nodes.getprev=node.getprev else function nodes.getprev (n) return getfield(n,"prev") end end
+if node.getchar then nodes.getchar=node.getchar else function nodes.getchar (n) return getfield(n,"char") end end
+if node.getfont then nodes.getfont=node.getfont else function nodes.getfont (n) return getfield(n,"font") end end
+if node.getlist then nodes.getlist=node.getlist else function nodes.getlist (n) return getfield(n,"list") end end
+function nodes.tonut (n) return n end
+function nodes.tonode(n) return n end
+nodes.tostring=node.tostring or tostring
+nodes.copy=node.copy
+nodes.copy_list=node.copy_list
+nodes.delete=node.delete
+nodes.dimensions=node.dimensions
+nodes.end_of_math=node.end_of_math
+nodes.flush_list=node.flush_list
+nodes.flush_node=node.flush_node
+nodes.free=node.free
+nodes.insert_after=node.insert_after
+nodes.insert_before=node.insert_before
+nodes.hpack=node.hpack
+nodes.new=node.new
+nodes.tail=node.tail
+nodes.traverse=node.traverse
+nodes.traverse_id=node.traverse_id
+nodes.slide=node.slide
+nodes.vpack=node.vpack
+nodes.first_glyph=node.first_glyph
+nodes.first_character=node.first_character
+nodes.has_glyph=node.has_glyph or node.first_glyph
+nodes.current_attr=node.current_attr
+nodes.do_ligature_n=node.do_ligature_n
+nodes.has_field=node.has_field
+nodes.last_node=node.last_node
+nodes.usedlist=node.usedlist
+nodes.protrusion_skippable=node.protrusion_skippable
+nodes.write=node.write
+nodes.has_attribute=node.has_attribute
+nodes.set_attribute=node.set_attribute
+nodes.unset_attribute=node.unset_attribute
+nodes.protect_glyphs=node.protect_glyphs
+nodes.unprotect_glyphs=node.unprotect_glyphs
+nodes.kerning=node.kerning
+nodes.ligaturing=node.ligaturing
+nodes.mlist_to_hlist=node.mlist_to_hlist
+nodes.nuts=nodes
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-ini']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local allocate=utilities.storage.allocate
+local report_defining=logs.reporter("fonts","defining")
+fonts=fonts or {}
+local fonts=fonts
+fonts.hashes={ identifiers=allocate() }
+fonts.tables=fonts.tables or {}
+fonts.helpers=fonts.helpers or {}
+fonts.tracers=fonts.tracers or {}
+fonts.specifiers=fonts.specifiers or {}
+fonts.analyzers={}
+fonts.readers={}
+fonts.definers={ methods={} }
+fonts.loggers={ register=function() end }
+fontloader.totable=fontloader.to_table
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-con']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local next,tostring,rawget=next,tostring,rawget
+local format,match,lower,gsub=string.format,string.match,string.lower,string.gsub
+local utfbyte=utf.byte
+local sort,insert,concat,sortedkeys,serialize,fastcopy=table.sort,table.insert,table.concat,table.sortedkeys,table.serialize,table.fastcopy
+local derivetable=table.derive
+local trace_defining=false trackers.register("fonts.defining",function(v) trace_defining=v end)
+local trace_scaling=false trackers.register("fonts.scaling",function(v) trace_scaling=v end)
+local report_defining=logs.reporter("fonts","defining")
+local fonts=fonts
+local constructors=fonts.constructors or {}
+fonts.constructors=constructors
+local handlers=fonts.handlers or {}
+fonts.handlers=handlers
+local allocate=utilities.storage.allocate
+local setmetatableindex=table.setmetatableindex
+constructors.dontembed=allocate()
+constructors.autocleanup=true
+constructors.namemode="fullpath"
+constructors.version=1.01
+constructors.cache=containers.define("fonts","constructors",constructors.version,false)
+constructors.privateoffset=0xF0000
+constructors.keys={
+ properties={
+ encodingbytes="number",
+ embedding="number",
+ cidinfo={},
+ format="string",
+ fontname="string",
+ fullname="string",
+ filename="filename",
+ psname="string",
+ name="string",
+ virtualized="boolean",
+ hasitalics="boolean",
+ autoitalicamount="basepoints",
+ nostackmath="boolean",
+ noglyphnames="boolean",
+ mode="string",
+ hasmath="boolean",
+ mathitalics="boolean",
+ textitalics="boolean",
+ finalized="boolean",
+ },
+ parameters={
+ mathsize="number",
+ scriptpercentage="float",
+ scriptscriptpercentage="float",
+ units="cardinal",
+ designsize="scaledpoints",
+ expansion={
+ stretch="integerscale",
+ shrink="integerscale",
+ step="integerscale",
+ auto="boolean",
+ },
+ protrusion={
+ auto="boolean",
+ },
+ slantfactor="float",
+ extendfactor="float",
+ factor="float",
+ hfactor="float",
+ vfactor="float",
+ size="scaledpoints",
+ units="scaledpoints",
+ scaledpoints="scaledpoints",
+ slantperpoint="scaledpoints",
+ spacing={
+ width="scaledpoints",
+ stretch="scaledpoints",
+ shrink="scaledpoints",
+ extra="scaledpoints",
+ },
+ xheight="scaledpoints",
+ quad="scaledpoints",
+ ascender="scaledpoints",
+ descender="scaledpoints",
+ synonyms={
+ space="spacing.width",
+ spacestretch="spacing.stretch",
+ spaceshrink="spacing.shrink",
+ extraspace="spacing.extra",
+ x_height="xheight",
+ space_stretch="spacing.stretch",
+ space_shrink="spacing.shrink",
+ extra_space="spacing.extra",
+ em="quad",
+ ex="xheight",
+ slant="slantperpoint",
+ },
+ },
+ description={
+ width="basepoints",
+ height="basepoints",
+ depth="basepoints",
+ boundingbox={},
+ },
+ character={
+ width="scaledpoints",
+ height="scaledpoints",
+ depth="scaledpoints",
+ italic="scaledpoints",
+ },
+}
+local designsizes=allocate()
+constructors.designsizes=designsizes
+local loadedfonts=allocate()
+constructors.loadedfonts=loadedfonts
+local factors={
+ pt=65536.0,
+ bp=65781.8,
+}
+function constructors.setfactor(f)
+ constructors.factor=factors[f or 'pt'] or factors.pt
+end
+constructors.setfactor()
+function constructors.scaled(scaledpoints,designsize)
+ if scaledpoints<0 then
+ if designsize then
+ local factor=constructors.factor
+ if designsize>factor then
+ return (- scaledpoints/1000)*designsize
+ else
+ return (- scaledpoints/1000)*designsize*factor
+ end
+ else
+ return (- scaledpoints/1000)*10*factor
+ end
+ else
+ return scaledpoints
+ end
+end
+function constructors.cleanuptable(tfmdata)
+ if constructors.autocleanup and tfmdata.properties.virtualized then
+ for k,v in next,tfmdata.characters do
+ if v.commands then v.commands=nil end
+ end
+ end
+end
+function constructors.calculatescale(tfmdata,scaledpoints)
+ local parameters=tfmdata.parameters
+ if scaledpoints<0 then
+ scaledpoints=(- scaledpoints/1000)*(tfmdata.designsize or parameters.designsize)
+ end
+ return scaledpoints,scaledpoints/(parameters.units or 1000)
+end
+local unscaled={
+ ScriptPercentScaleDown=true,
+ ScriptScriptPercentScaleDown=true,
+ RadicalDegreeBottomRaisePercent=true
+}
+function constructors.assignmathparameters(target,original)
+ local mathparameters=original.mathparameters
+ if mathparameters and next(mathparameters) then
+ local targetparameters=target.parameters
+ local targetproperties=target.properties
+ local targetmathparameters={}
+ local factor=targetproperties.math_is_scaled and 1 or targetparameters.factor
+ for name,value in next,mathparameters do
+ if unscaled[name] then
+ targetmathparameters[name]=value
+ else
+ targetmathparameters[name]=value*factor
+ end
+ end
+ if not targetmathparameters.FractionDelimiterSize then
+ targetmathparameters.FractionDelimiterSize=1.01*targetparameters.size
+ end
+ if not mathparameters.FractionDelimiterDisplayStyleSize then
+ targetmathparameters.FractionDelimiterDisplayStyleSize=2.40*targetparameters.size
+ end
+ target.mathparameters=targetmathparameters
+ end
+end
+function constructors.beforecopyingcharacters(target,original)
+end
+function constructors.aftercopyingcharacters(target,original)
+end
+constructors.sharefonts=false
+constructors.nofsharedfonts=0
+local sharednames={}
+function constructors.trytosharefont(target,tfmdata)
+ if constructors.sharefonts then
+ local characters=target.characters
+ local n=1
+ local t={ target.psname }
+ local u=sortedkeys(characters)
+ for i=1,#u do
+ local k=u[i]
+ n=n+1;t[n]=k
+ n=n+1;t[n]=characters[k].index or k
+ end
+ local h=md5.HEX(concat(t," "))
+ local s=sharednames[h]
+ if s then
+ if trace_defining then
+ report_defining("font %a uses backend resources of font %a",target.fullname,s)
+ end
+ target.fullname=s
+ constructors.nofsharedfonts=constructors.nofsharedfonts+1
+ target.properties.sharedwith=s
+ else
+ sharednames[h]=target.fullname
+ end
+ end
+end
+function constructors.enhanceparameters(parameters)
+ local xheight=parameters.x_height
+ local quad=parameters.quad
+ local space=parameters.space
+ local stretch=parameters.space_stretch
+ local shrink=parameters.space_shrink
+ local extra=parameters.extra_space
+ local slant=parameters.slant
+ parameters.xheight=xheight
+ parameters.spacestretch=stretch
+ parameters.spaceshrink=shrink
+ parameters.extraspace=extra
+ parameters.em=quad
+ parameters.ex=xheight
+ parameters.slantperpoint=slant
+ parameters.spacing={
+ width=space,
+ stretch=stretch,
+ shrink=shrink,
+ extra=extra,
+ }
+end
+function constructors.scale(tfmdata,specification)
+ local target={}
+ if tonumber(specification) then
+ specification={ size=specification }
+ end
+ target.specification=specification
+ local scaledpoints=specification.size
+ local relativeid=specification.relativeid
+ local properties=tfmdata.properties or {}
+ local goodies=tfmdata.goodies or {}
+ local resources=tfmdata.resources or {}
+ local descriptions=tfmdata.descriptions or {}
+ local characters=tfmdata.characters or {}
+ local changed=tfmdata.changed or {}
+ local shared=tfmdata.shared or {}
+ local parameters=tfmdata.parameters or {}
+ local mathparameters=tfmdata.mathparameters or {}
+ local targetcharacters={}
+ local targetdescriptions=derivetable(descriptions)
+ local targetparameters=derivetable(parameters)
+ local targetproperties=derivetable(properties)
+ local targetgoodies=goodies
+ target.characters=targetcharacters
+ target.descriptions=targetdescriptions
+ target.parameters=targetparameters
+ target.properties=targetproperties
+ target.goodies=targetgoodies
+ target.shared=shared
+ target.resources=resources
+ target.unscaled=tfmdata
+ local mathsize=tonumber(specification.mathsize) or 0
+ local textsize=tonumber(specification.textsize) or scaledpoints
+ local forcedsize=tonumber(parameters.mathsize ) or 0
+ local extrafactor=tonumber(specification.factor ) or 1
+ if (mathsize==2 or forcedsize==2) and parameters.scriptpercentage then
+ scaledpoints=parameters.scriptpercentage*textsize/100
+ elseif (mathsize==3 or forcedsize==3) and parameters.scriptscriptpercentage then
+ scaledpoints=parameters.scriptscriptpercentage*textsize/100
+ elseif forcedsize>1000 then
+ scaledpoints=forcedsize
+ end
+ targetparameters.mathsize=mathsize
+ targetparameters.textsize=textsize
+ targetparameters.forcedsize=forcedsize
+ targetparameters.extrafactor=extrafactor
+ local tounicode=resources.tounicode
+ local defaultwidth=resources.defaultwidth or 0
+ local defaultheight=resources.defaultheight or 0
+ local defaultdepth=resources.defaultdepth or 0
+ local units=parameters.units or 1000
+ if target.fonts then
+ target.fonts=fastcopy(target.fonts)
+ end
+ targetproperties.language=properties.language or "dflt"
+ targetproperties.script=properties.script or "dflt"
+ targetproperties.mode=properties.mode or "base"
+ local askedscaledpoints=scaledpoints
+ local scaledpoints,delta=constructors.calculatescale(tfmdata,scaledpoints,nil,specification)
+ local hdelta=delta
+ local vdelta=delta
+ target.designsize=parameters.designsize
+ target.units_per_em=units
+ local direction=properties.direction or tfmdata.direction or 0
+ target.direction=direction
+ properties.direction=direction
+ target.size=scaledpoints
+ target.encodingbytes=properties.encodingbytes or 1
+ target.embedding=properties.embedding or "subset"
+ target.tounicode=1
+ target.cidinfo=properties.cidinfo
+ target.format=properties.format
+ local fontname=properties.fontname or tfmdata.fontname
+ local fullname=properties.fullname or tfmdata.fullname
+ local filename=properties.filename or tfmdata.filename
+ local psname=properties.psname or tfmdata.psname
+ local name=properties.name or tfmdata.name
+ if not psname or psname=="" then
+ psname=fontname or (fullname and fonts.names.cleanname(fullname))
+ end
+ target.fontname=fontname
+ target.fullname=fullname
+ target.filename=filename
+ target.psname=psname
+ target.name=name
+ properties.fontname=fontname
+ properties.fullname=fullname
+ properties.filename=filename
+ properties.psname=psname
+ properties.name=name
+ local expansion=parameters.expansion
+ if expansion then
+ target.stretch=expansion.stretch
+ target.shrink=expansion.shrink
+ target.step=expansion.step
+ target.auto_expand=expansion.auto
+ end
+ local protrusion=parameters.protrusion
+ if protrusion then
+ target.auto_protrude=protrusion.auto
+ end
+ local extendfactor=parameters.extendfactor or 0
+ if extendfactor~=0 and extendfactor~=1 then
+ hdelta=hdelta*extendfactor
+ target.extend=extendfactor*1000
+ else
+ target.extend=1000
+ end
+ local slantfactor=parameters.slantfactor or 0
+ if slantfactor~=0 then
+ target.slant=slantfactor*1000
+ else
+ target.slant=0
+ end
+ targetparameters.factor=delta
+ targetparameters.hfactor=hdelta
+ targetparameters.vfactor=vdelta
+ targetparameters.size=scaledpoints
+ targetparameters.units=units
+ targetparameters.scaledpoints=askedscaledpoints
+ local isvirtual=properties.virtualized or tfmdata.type=="virtual"
+ local hasquality=target.auto_expand or target.auto_protrude
+ local hasitalics=properties.hasitalics
+ local autoitalicamount=properties.autoitalicamount
+ local stackmath=not properties.nostackmath
+ local nonames=properties.noglyphnames
+ local nodemode=properties.mode=="node"
+ if changed and not next(changed) then
+ changed=false
+ end
+ target.type=isvirtual and "virtual" or "real"
+ target.postprocessors=tfmdata.postprocessors
+ local targetslant=(parameters.slant or parameters[1] or 0)*factors.pt
+ local targetspace=(parameters.space or parameters[2] or 0)*hdelta
+ local targetspace_stretch=(parameters.space_stretch or parameters[3] or 0)*hdelta
+ local targetspace_shrink=(parameters.space_shrink or parameters[4] or 0)*hdelta
+ local targetx_height=(parameters.x_height or parameters[5] or 0)*vdelta
+ local targetquad=(parameters.quad or parameters[6] or 0)*hdelta
+ local targetextra_space=(parameters.extra_space or parameters[7] or 0)*hdelta
+ targetparameters.slant=targetslant
+ targetparameters.space=targetspace
+ targetparameters.space_stretch=targetspace_stretch
+ targetparameters.space_shrink=targetspace_shrink
+ targetparameters.x_height=targetx_height
+ targetparameters.quad=targetquad
+ targetparameters.extra_space=targetextra_space
+ local ascender=parameters.ascender
+ if ascender then
+ targetparameters.ascender=delta*ascender
+ end
+ local descender=parameters.descender
+ if descender then
+ targetparameters.descender=delta*descender
+ end
+ constructors.enhanceparameters(targetparameters)
+ local protrusionfactor=(targetquad~=0 and 1000/targetquad) or 0
+ local scaledwidth=defaultwidth*hdelta
+ local scaledheight=defaultheight*vdelta
+ local scaleddepth=defaultdepth*vdelta
+ local hasmath=(properties.hasmath or next(mathparameters)) and true
+ if hasmath then
+ constructors.assignmathparameters(target,tfmdata)
+ properties.hasmath=true
+ target.nomath=false
+ target.MathConstants=target.mathparameters
+ else
+ properties.hasmath=false
+ target.nomath=true
+ target.mathparameters=nil
+ end
+ local italickey="italic"
+ local useitalics=true
+ if hasmath then
+ autoitalicamount=false
+ elseif properties.textitalics then
+ italickey="italic_correction"
+ useitalics=false
+ if properties.delaytextitalics then
+ autoitalicamount=false
+ end
+ end
+ if trace_defining then
+ report_defining("defining tfm, name %a, fullname %a, filename %a, hscale %a, vscale %a, math %a, italics %a",
+ name,fullname,filename,hdelta,vdelta,
+ hasmath and "enabled" or "disabled",useitalics and "enabled" or "disabled")
+ end
+ constructors.beforecopyingcharacters(target,tfmdata)
+ local sharedkerns={}
+ for unicode,character in next,characters do
+ local chr,description,index,touni
+ if changed then
+ local c=changed[unicode]
+ if c then
+ local ligatures=character.ligatures
+ description=descriptions[c] or descriptions[unicode] or character
+ character=characters[c] or character
+ index=description.index or c
+ if tounicode then
+ touni=tounicode[index]
+ if not touni then
+ local d=descriptions[unicode] or characters[unicode]
+ local i=d.index or unicode
+ touni=tounicode[i]
+ end
+ end
+ if ligatures and not character.ligatures then
+ character.ligatures=ligatures
+ end
+ else
+ description=descriptions[unicode] or character
+ index=description.index or unicode
+ if tounicode then
+ touni=tounicode[index]
+ end
+ end
+ else
+ description=descriptions[unicode] or character
+ index=description.index or unicode
+ if tounicode then
+ touni=tounicode[index]
+ end
+ end
+ local width=description.width
+ local height=description.height
+ local depth=description.depth
+ if width then width=hdelta*width else width=scaledwidth end
+ if height then height=vdelta*height else height=scaledheight end
+ if depth and depth~=0 then
+ depth=delta*depth
+ if nonames then
+ chr={
+ index=index,
+ height=height,
+ depth=depth,
+ width=width,
+ }
+ else
+ chr={
+ name=description.name,
+ index=index,
+ height=height,
+ depth=depth,
+ width=width,
+ }
+ end
+ else
+ if nonames then
+ chr={
+ index=index,
+ height=height,
+ width=width,
+ }
+ else
+ chr={
+ name=description.name,
+ index=index,
+ height=height,
+ width=width,
+ }
+ end
+ end
+ if touni then
+ chr.tounicode=touni
+ end
+ if hasquality then
+ local ve=character.expansion_factor
+ if ve then
+ chr.expansion_factor=ve*1000
+ end
+ local vl=character.left_protruding
+ if vl then
+ chr.left_protruding=protrusionfactor*width*vl
+ end
+ local vr=character.right_protruding
+ if vr then
+ chr.right_protruding=protrusionfactor*width*vr
+ end
+ end
+ if autoitalicamount then
+ local vi=description.italic
+ if not vi then
+ local vi=description.boundingbox[3]-description.width+autoitalicamount
+ if vi>0 then
+ chr[italickey]=vi*hdelta
+ end
+ elseif vi~=0 then
+ chr[italickey]=vi*hdelta
+ end
+ elseif hasitalics then
+ local vi=description.italic
+ if vi and vi~=0 then
+ chr[italickey]=vi*hdelta
+ end
+ end
+ if hasmath then
+ local vn=character.next
+ if vn then
+ chr.next=vn
+ else
+ local vv=character.vert_variants
+ if vv then
+ local t={}
+ for i=1,#vv do
+ local vvi=vv[i]
+ t[i]={
+ ["start"]=(vvi["start"] or 0)*vdelta,
+ ["end"]=(vvi["end"] or 0)*vdelta,
+ ["advance"]=(vvi["advance"] or 0)*vdelta,
+ ["extender"]=vvi["extender"],
+ ["glyph"]=vvi["glyph"],
+ }
+ end
+ chr.vert_variants=t
+ else
+ local hv=character.horiz_variants
+ if hv then
+ local t={}
+ for i=1,#hv do
+ local hvi=hv[i]
+ t[i]={
+ ["start"]=(hvi["start"] or 0)*hdelta,
+ ["end"]=(hvi["end"] or 0)*hdelta,
+ ["advance"]=(hvi["advance"] or 0)*hdelta,
+ ["extender"]=hvi["extender"],
+ ["glyph"]=hvi["glyph"],
+ }
+ end
+ chr.horiz_variants=t
+ end
+ end
+ end
+ local va=character.top_accent
+ if va then
+ chr.top_accent=vdelta*va
+ end
+ if stackmath then
+ local mk=character.mathkerns
+ if mk then
+ local kerns={}
+ local v=mk.top_right if v then local k={} for i=1,#v do local vi=v[i]
+ k[i]={ height=vdelta*vi.height,kern=vdelta*vi.kern }
+ end kerns.top_right=k end
+ local v=mk.top_left if v then local k={} for i=1,#v do local vi=v[i]
+ k[i]={ height=vdelta*vi.height,kern=vdelta*vi.kern }
+ end kerns.top_left=k end
+ local v=mk.bottom_left if v then local k={} for i=1,#v do local vi=v[i]
+ k[i]={ height=vdelta*vi.height,kern=vdelta*vi.kern }
+ end kerns.bottom_left=k end
+ local v=mk.bottom_right if v then local k={} for i=1,#v do local vi=v[i]
+ k[i]={ height=vdelta*vi.height,kern=vdelta*vi.kern }
+ end kerns.bottom_right=k end
+ chr.mathkern=kerns
+ end
+ end
+ end
+ if not nodemode then
+ local vk=character.kerns
+ if vk then
+ local s=sharedkerns[vk]
+ if not s then
+ s={}
+ for k,v in next,vk do s[k]=v*hdelta end
+ sharedkerns[vk]=s
+ end
+ chr.kerns=s
+ end
+ local vl=character.ligatures
+ if vl then
+ if true then
+ chr.ligatures=vl
+ else
+ local tt={}
+ for i,l in next,vl do
+ tt[i]=l
+ end
+ chr.ligatures=tt
+ end
+ end
+ end
+ if isvirtual then
+ local vc=character.commands
+ if vc then
+ local ok=false
+ for i=1,#vc do
+ local key=vc[i][1]
+ if key=="right" or key=="down" then
+ ok=true
+ break
+ end
+ end
+ if ok then
+ local tt={}
+ for i=1,#vc do
+ local ivc=vc[i]
+ local key=ivc[1]
+ if key=="right" then
+ tt[i]={ key,ivc[2]*hdelta }
+ elseif key=="down" then
+ tt[i]={ key,ivc[2]*vdelta }
+ elseif key=="rule" then
+ tt[i]={ key,ivc[2]*vdelta,ivc[3]*hdelta }
+ else
+ tt[i]=ivc
+ end
+ end
+ chr.commands=tt
+ else
+ chr.commands=vc
+ end
+ chr.index=nil
+ end
+ end
+ targetcharacters[unicode]=chr
+ end
+ constructors.aftercopyingcharacters(target,tfmdata)
+ constructors.trytosharefont(target,tfmdata)
+ return target
+end
+function constructors.finalize(tfmdata)
+ if tfmdata.properties and tfmdata.properties.finalized then
+ return
+ end
+ if not tfmdata.characters then
+ return nil
+ end
+ if not tfmdata.goodies then
+ tfmdata.goodies={}
+ end
+ local parameters=tfmdata.parameters
+ if not parameters then
+ return nil
+ end
+ if not parameters.expansion then
+ parameters.expansion={
+ stretch=tfmdata.stretch or 0,
+ shrink=tfmdata.shrink or 0,
+ step=tfmdata.step or 0,
+ auto=tfmdata.auto_expand or false,
+ }
+ end
+ if not parameters.protrusion then
+ parameters.protrusion={
+ auto=auto_protrude
+ }
+ end
+ if not parameters.size then
+ parameters.size=tfmdata.size
+ end
+ if not parameters.extendfactor then
+ parameters.extendfactor=tfmdata.extend or 0
+ end
+ if not parameters.slantfactor then
+ parameters.slantfactor=tfmdata.slant or 0
+ end
+ if not parameters.designsize then
+ parameters.designsize=tfmdata.designsize or (factors.pt*10)
+ end
+ if not parameters.units then
+ parameters.units=tfmdata.units_per_em or 1000
+ end
+ if not tfmdata.descriptions then
+ local descriptions={}
+ setmetatableindex(descriptions,function(t,k) local v={} t[k]=v return v end)
+ tfmdata.descriptions=descriptions
+ end
+ local properties=tfmdata.properties
+ if not properties then
+ properties={}
+ tfmdata.properties=properties
+ end
+ if not properties.virtualized then
+ properties.virtualized=tfmdata.type=="virtual"
+ end
+ if not tfmdata.properties then
+ tfmdata.properties={
+ fontname=tfmdata.fontname,
+ filename=tfmdata.filename,
+ fullname=tfmdata.fullname,
+ name=tfmdata.name,
+ psname=tfmdata.psname,
+ encodingbytes=tfmdata.encodingbytes or 1,
+ embedding=tfmdata.embedding or "subset",
+ tounicode=tfmdata.tounicode or 1,
+ cidinfo=tfmdata.cidinfo or nil,
+ format=tfmdata.format or "type1",
+ direction=tfmdata.direction or 0,
+ }
+ end
+ if not tfmdata.resources then
+ tfmdata.resources={}
+ end
+ if not tfmdata.shared then
+ tfmdata.shared={}
+ end
+ if not properties.hasmath then
+ properties.hasmath=not tfmdata.nomath
+ end
+ tfmdata.MathConstants=nil
+ tfmdata.postprocessors=nil
+ tfmdata.fontname=nil
+ tfmdata.filename=nil
+ tfmdata.fullname=nil
+ tfmdata.name=nil
+ tfmdata.psname=nil
+ tfmdata.encodingbytes=nil
+ tfmdata.embedding=nil
+ tfmdata.tounicode=nil
+ tfmdata.cidinfo=nil
+ tfmdata.format=nil
+ tfmdata.direction=nil
+ tfmdata.type=nil
+ tfmdata.nomath=nil
+ tfmdata.designsize=nil
+ tfmdata.size=nil
+ tfmdata.stretch=nil
+ tfmdata.shrink=nil
+ tfmdata.step=nil
+ tfmdata.auto_expand=nil
+ tfmdata.auto_protrude=nil
+ tfmdata.extend=nil
+ tfmdata.slant=nil
+ tfmdata.units_per_em=nil
+ properties.finalized=true
+ return tfmdata
+end
+local hashmethods={}
+constructors.hashmethods=hashmethods
+function constructors.hashfeatures(specification)
+ local features=specification.features
+ if features then
+ local t,tn={},0
+ for category,list in next,features do
+ if next(list) then
+ local hasher=hashmethods[category]
+ if hasher then
+ local hash=hasher(list)
+ if hash then
+ tn=tn+1
+ t[tn]=category..":"..hash
+ end
+ end
+ end
+ end
+ if tn>0 then
+ return concat(t," & ")
+ end
+ end
+ return "unknown"
+end
+hashmethods.normal=function(list)
+ local s={}
+ local n=0
+ for k,v in next,list do
+ if not k then
+ elseif k=="number" or k=="features" then
+ else
+ n=n+1
+ s[n]=k
+ end
+ end
+ if n>0 then
+ sort(s)
+ for i=1,n do
+ local k=s[i]
+ s[i]=k..'='..tostring(list[k])
+ end
+ return concat(s,"+")
+ end
+end
+function constructors.hashinstance(specification,force)
+ local hash,size,fallbacks=specification.hash,specification.size,specification.fallbacks
+ if force or not hash then
+ hash=constructors.hashfeatures(specification)
+ specification.hash=hash
+ end
+ if size<1000 and designsizes[hash] then
+ size=math.round(constructors.scaled(size,designsizes[hash]))
+ specification.size=size
+ end
+ if fallbacks then
+ return hash..' @ '..tostring(size)..' @ '..fallbacks
+ else
+ return hash..' @ '..tostring(size)
+ end
+end
+function constructors.setname(tfmdata,specification)
+ if constructors.namemode=="specification" then
+ local specname=specification.specification
+ if specname then
+ tfmdata.properties.name=specname
+ if trace_defining then
+ report_otf("overloaded fontname %a",specname)
+ end
+ end
+ end
+end
+function constructors.checkedfilename(data)
+ local foundfilename=data.foundfilename
+ if not foundfilename then
+ local askedfilename=data.filename or ""
+ if askedfilename~="" then
+ askedfilename=resolvers.resolve(askedfilename)
+ foundfilename=resolvers.findbinfile(askedfilename,"") or ""
+ if foundfilename=="" then
+ report_defining("source file %a is not found",askedfilename)
+ foundfilename=resolvers.findbinfile(file.basename(askedfilename),"") or ""
+ if foundfilename~="" then
+ report_defining("using source file %a due to cache mismatch",foundfilename)
+ end
+ end
+ end
+ data.foundfilename=foundfilename
+ end
+ return foundfilename
+end
+local formats=allocate()
+fonts.formats=formats
+setmetatableindex(formats,function(t,k)
+ local l=lower(k)
+ if rawget(t,k) then
+ t[k]=l
+ return l
+ end
+ return rawget(t,file.suffix(l))
+end)
+local locations={}
+local function setindeed(mode,target,group,name,action,position)
+ local t=target[mode]
+ if not t then
+ report_defining("fatal error in setting feature %a, group %a, mode %a",name,group,mode)
+ os.exit()
+ elseif position then
+ insert(t,position,{ name=name,action=action })
+ else
+ for i=1,#t do
+ local ti=t[i]
+ if ti.name==name then
+ ti.action=action
+ return
+ end
+ end
+ insert(t,{ name=name,action=action })
+ end
+end
+local function set(group,name,target,source)
+ target=target[group]
+ if not target then
+ report_defining("fatal target error in setting feature %a, group %a",name,group)
+ os.exit()
+ end
+ local source=source[group]
+ if not source then
+ report_defining("fatal source error in setting feature %a, group %a",name,group)
+ os.exit()
+ end
+ local node=source.node
+ local base=source.base
+ local position=source.position
+ if node then
+ setindeed("node",target,group,name,node,position)
+ end
+ if base then
+ setindeed("base",target,group,name,base,position)
+ end
+end
+local function register(where,specification)
+ local name=specification.name
+ if name and name~="" then
+ local default=specification.default
+ local description=specification.description
+ local initializers=specification.initializers
+ local processors=specification.processors
+ local manipulators=specification.manipulators
+ local modechecker=specification.modechecker
+ if default then
+ where.defaults[name]=default
+ end
+ if description and description~="" then
+ where.descriptions[name]=description
+ end
+ if initializers then
+ set('initializers',name,where,specification)
+ end
+ if processors then
+ set('processors',name,where,specification)
+ end
+ if manipulators then
+ set('manipulators',name,where,specification)
+ end
+ if modechecker then
+ where.modechecker=modechecker
+ end
+ end
+end
+constructors.registerfeature=register
+function constructors.getfeatureaction(what,where,mode,name)
+ what=handlers[what].features
+ if what then
+ where=what[where]
+ if where then
+ mode=where[mode]
+ if mode then
+ for i=1,#mode do
+ local m=mode[i]
+ if m.name==name then
+ return m.action
+ end
+ end
+ end
+ end
+ end
+end
+function constructors.newhandler(what)
+ local handler=handlers[what]
+ if not handler then
+ handler={}
+ handlers[what]=handler
+ end
+ return handler
+end
+function constructors.newfeatures(what)
+ local handler=handlers[what]
+ local features=handler.features
+ if not features then
+ local tables=handler.tables
+ local statistics=handler.statistics
+ features=allocate {
+ defaults={},
+ descriptions=tables and tables.features or {},
+ used=statistics and statistics.usedfeatures or {},
+ initializers={ base={},node={} },
+ processors={ base={},node={} },
+ manipulators={ base={},node={} },
+ }
+ features.register=function(specification) return register(features,specification) end
+ handler.features=features
+ end
+ return features
+end
+function constructors.checkedfeatures(what,features)
+ local defaults=handlers[what].features.defaults
+ if features and next(features) then
+ features=fastcopy(features)
+ for key,value in next,defaults do
+ if features[key]==nil then
+ features[key]=value
+ end
+ end
+ return features
+ else
+ return fastcopy(defaults)
+ end
+end
+function constructors.initializefeatures(what,tfmdata,features,trace,report)
+ if features and next(features) then
+ local properties=tfmdata.properties or {}
+ local whathandler=handlers[what]
+ local whatfeatures=whathandler.features
+ local whatinitializers=whatfeatures.initializers
+ local whatmodechecker=whatfeatures.modechecker
+ local mode=properties.mode or (whatmodechecker and whatmodechecker(tfmdata,features,features.mode)) or features.mode or "base"
+ properties.mode=mode
+ features.mode=mode
+ local done={}
+ while true do
+ local redo=false
+ local initializers=whatfeatures.initializers[mode]
+ if initializers then
+ for i=1,#initializers do
+ local step=initializers[i]
+ local feature=step.name
+ local value=features[feature]
+ if not value then
+ elseif done[feature] then
+ else
+ local action=step.action
+ if trace then
+ report("initializing feature %a to %a for mode %a for font %a",feature,
+ value,mode,tfmdata.properties.fullname)
+ end
+ action(tfmdata,value,features)
+ if mode~=properties.mode or mode~=features.mode then
+ if whatmodechecker then
+ properties.mode=whatmodechecker(tfmdata,features,properties.mode)
+ features.mode=properties.mode
+ end
+ if mode~=properties.mode then
+ mode=properties.mode
+ redo=true
+ end
+ end
+ done[feature]=true
+ end
+ if redo then
+ break
+ end
+ end
+ if not redo then
+ break
+ end
+ else
+ break
+ end
+ end
+ properties.mode=mode
+ return true
+ else
+ return false
+ end
+end
+function constructors.collectprocessors(what,tfmdata,features,trace,report)
+ local processes,nofprocesses={},0
+ if features and next(features) then
+ local properties=tfmdata.properties
+ local whathandler=handlers[what]
+ local whatfeatures=whathandler.features
+ local whatprocessors=whatfeatures.processors
+ local mode=properties.mode
+ local processors=whatprocessors[mode]
+ if processors then
+ for i=1,#processors do
+ local step=processors[i]
+ local feature=step.name
+ if features[feature] then
+ local action=step.action
+ if trace then
+ report("installing feature processor %a for mode %a for font %a",feature,mode,tfmdata.properties.fullname)
+ end
+ if action then
+ nofprocesses=nofprocesses+1
+ processes[nofprocesses]=action
+ end
+ end
+ end
+ elseif trace then
+ report("no feature processors for mode %a for font %a",mode,properties.fullname)
+ end
+ end
+ return processes
+end
+function constructors.applymanipulators(what,tfmdata,features,trace,report)
+ if features and next(features) then
+ local properties=tfmdata.properties
+ local whathandler=handlers[what]
+ local whatfeatures=whathandler.features
+ local whatmanipulators=whatfeatures.manipulators
+ local mode=properties.mode
+ local manipulators=whatmanipulators[mode]
+ if manipulators then
+ for i=1,#manipulators do
+ local step=manipulators[i]
+ local feature=step.name
+ local value=features[feature]
+ if value then
+ local action=step.action
+ if trace then
+ report("applying feature manipulator %a for mode %a for font %a",feature,mode,properties.fullname)
+ end
+ if action then
+ action(tfmdata,feature,value)
+ end
+ end
+ end
+ end
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['luatex-font-enc']={
+ version=1.001,
+ comment="companion to luatex-*.tex",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+if context then
+ texio.write_nl("fatal error: this module is not for context")
+ os.exit()
+end
+local fonts=fonts
+fonts.encodings={}
+fonts.encodings.agl={}
+fonts.encodings.known={}
+setmetatable(fonts.encodings.agl,{ __index=function(t,k)
+ if k=="unicodes" then
+ texio.write(" <loading (extended) adobe glyph list>")
+ local unicodes=dofile(resolvers.findfile("font-age.lua"))
+ fonts.encodings.agl={ unicodes=unicodes }
+ return unicodes
+ else
+ return nil
+ end
+end })
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-cid']={
+ version=1.001,
+ comment="companion to font-otf.lua (cidmaps)",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local format,match,lower=string.format,string.match,string.lower
+local tonumber=tonumber
+local P,S,R,C,V,lpegmatch=lpeg.P,lpeg.S,lpeg.R,lpeg.C,lpeg.V,lpeg.match
+local fonts,logs,trackers=fonts,logs,trackers
+local trace_loading=false trackers.register("otf.loading",function(v) trace_loading=v end)
+local report_otf=logs.reporter("fonts","otf loading")
+local cid={}
+fonts.cid=cid
+local cidmap={}
+local cidmax=10
+local number=C(R("09","af","AF")^1)
+local space=S(" \n\r\t")
+local spaces=space^0
+local period=P(".")
+local periods=period*period
+local name=P("/")*C((1-space)^1)
+local unicodes,names={},{}
+local function do_one(a,b)
+ unicodes[tonumber(a)]=tonumber(b,16)
+end
+local function do_range(a,b,c)
+ c=tonumber(c,16)
+ for i=tonumber(a),tonumber(b) do
+ unicodes[i]=c
+ c=c+1
+ end
+end
+local function do_name(a,b)
+ names[tonumber(a)]=b
+end
+local grammar=P { "start",
+ start=number*spaces*number*V("series"),
+ series=(spaces*(V("one")+V("range")+V("named")))^1,
+ one=(number*spaces*number)/do_one,
+ range=(number*periods*number*spaces*number)/do_range,
+ named=(number*spaces*name)/do_name
+}
+local function loadcidfile(filename)
+ local data=io.loaddata(filename)
+ if data then
+ unicodes,names={},{}
+ lpegmatch(grammar,data)
+ local supplement,registry,ordering=match(filename,"^(.-)%-(.-)%-()%.(.-)$")
+ return {
+ supplement=supplement,
+ registry=registry,
+ ordering=ordering,
+ filename=filename,
+ unicodes=unicodes,
+ names=names
+ }
+ end
+end
+cid.loadfile=loadcidfile
+local template="%s-%s-%s.cidmap"
+local function locate(registry,ordering,supplement)
+ local filename=format(template,registry,ordering,supplement)
+ local hashname=lower(filename)
+ local found=cidmap[hashname]
+ if not found then
+ if trace_loading then
+ report_otf("checking cidmap, registry %a, ordering %a, supplement %a, filename %a",registry,ordering,supplement,filename)
+ end
+ local fullname=resolvers.findfile(filename,'cid') or ""
+ if fullname~="" then
+ found=loadcidfile(fullname)
+ if found then
+ if trace_loading then
+ report_otf("using cidmap file %a",filename)
+ end
+ cidmap[hashname]=found
+ found.usedname=file.basename(filename)
+ end
+ end
+ end
+ return found
+end
+function cid.getmap(specification)
+ if not specification then
+ report_otf("invalid cidinfo specification, table expected")
+ return
+ end
+ local registry=specification.registry
+ local ordering=specification.ordering
+ local supplement=specification.supplement
+ local filename=format(registry,ordering,supplement)
+ local found=cidmap[lower(filename)]
+ if found then
+ return found
+ end
+ if trace_loading then
+ report_otf("cidmap needed, registry %a, ordering %a, supplement %a",registry,ordering,supplement)
+ end
+ found=locate(registry,ordering,supplement)
+ if not found then
+ local supnum=tonumber(supplement)
+ local cidnum=nil
+ if supnum<cidmax then
+ for s=supnum+1,cidmax do
+ local c=locate(registry,ordering,s)
+ if c then
+ found,cidnum=c,s
+ break
+ end
+ end
+ end
+ if not found and supnum>0 then
+ for s=supnum-1,0,-1 do
+ local c=locate(registry,ordering,s)
+ if c then
+ found,cidnum=c,s
+ break
+ end
+ end
+ end
+ registry=lower(registry)
+ ordering=lower(ordering)
+ if found and cidnum>0 then
+ for s=0,cidnum-1 do
+ local filename=format(template,registry,ordering,s)
+ if not cidmap[filename] then
+ cidmap[filename]=found
+ end
+ end
+ end
+ end
+ return found
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-map']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local tonumber=tonumber
+local match,format,find,concat,gsub,lower=string.match,string.format,string.find,table.concat,string.gsub,string.lower
+local P,R,S,C,Ct,Cc,lpegmatch=lpeg.P,lpeg.R,lpeg.S,lpeg.C,lpeg.Ct,lpeg.Cc,lpeg.match
+local utfbyte=utf.byte
+local floor=math.floor
+local trace_loading=false trackers.register("fonts.loading",function(v) trace_loading=v end)
+local trace_mapping=false trackers.register("fonts.mapping",function(v) trace_unimapping=v end)
+local report_fonts=logs.reporter("fonts","loading")
+local fonts=fonts or {}
+local mappings=fonts.mappings or {}
+fonts.mappings=mappings
+local function loadlumtable(filename)
+ local lumname=file.replacesuffix(file.basename(filename),"lum")
+ local lumfile=resolvers.findfile(lumname,"map") or ""
+ if lumfile~="" and lfs.isfile(lumfile) then
+ if trace_loading or trace_mapping then
+ report_fonts("loading map table %a",lumfile)
+ end
+ lumunic=dofile(lumfile)
+ return lumunic,lumfile
+ end
+end
+local hex=R("AF","09")
+local hexfour=(hex*hex*hex*hex)/function(s) return tonumber(s,16) end
+local hexsix=(hex*hex*hex*hex*hex*hex)/function(s) return tonumber(s,16) end
+local dec=(R("09")^1)/tonumber
+local period=P(".")
+local unicode=P("uni")*(hexfour*(period+P(-1))*Cc(false)+Ct(hexfour^1)*Cc(true))
+local ucode=P("u")*(hexsix*(period+P(-1))*Cc(false)+Ct(hexsix^1)*Cc(true))
+local index=P("index")*dec*Cc(false)
+local parser=unicode+ucode+index
+local parsers={}
+local function makenameparser(str)
+ if not str or str=="" then
+ return parser
+ else
+ local p=parsers[str]
+ if not p then
+ p=P(str)*period*dec*Cc(false)
+ parsers[str]=p
+ end
+ return p
+ end
+end
+local function tounicode16(unicode,name)
+ if unicode<0x10000 then
+ return format("%04X",unicode)
+ elseif unicode<0x1FFFFFFFFF then
+ return format("%04X%04X",floor(unicode/1024),unicode%1024+0xDC00)
+ else
+ report_fonts("can't convert %a in %a into tounicode",unicode,name)
+ end
+end
+local function tounicode16sequence(unicodes,name)
+ local t={}
+ for l=1,#unicodes do
+ local unicode=unicodes[l]
+ if unicode<0x10000 then
+ t[l]=format("%04X",unicode)
+ elseif unicode<0x1FFFFFFFFF then
+ t[l]=format("%04X%04X",floor(unicode/1024),unicode%1024+0xDC00)
+ else
+ report_fonts ("can't convert %a in %a into tounicode",unicode,name)
+ end
+ end
+ return concat(t)
+end
+local function fromunicode16(str)
+ if #str==4 then
+ return tonumber(str,16)
+ else
+ local l,r=match(str,"(....)(....)")
+ return (tonumber(l,16))*0x400+tonumber(r,16)-0xDC00
+ end
+end
+mappings.loadlumtable=loadlumtable
+mappings.makenameparser=makenameparser
+mappings.tounicode16=tounicode16
+mappings.tounicode16sequence=tounicode16sequence
+mappings.fromunicode16=fromunicode16
+local ligseparator=P("_")
+local varseparator=P(".")
+local namesplitter=Ct(C((1-ligseparator-varseparator)^1)*(ligseparator*C((1-ligseparator-varseparator)^1))^0)
+function mappings.addtounicode(data,filename)
+ local resources=data.resources
+ local properties=data.properties
+ local descriptions=data.descriptions
+ local unicodes=resources.unicodes
+ if not unicodes then
+ return
+ end
+ unicodes['space']=unicodes['space'] or 32
+ unicodes['hyphen']=unicodes['hyphen'] or 45
+ unicodes['zwj']=unicodes['zwj'] or 0x200D
+ unicodes['zwnj']=unicodes['zwnj'] or 0x200C
+ local private=fonts.constructors.privateoffset
+ local unknown=format("%04X",utfbyte("?"))
+ local unicodevector=fonts.encodings.agl.unicodes
+ local tounicode={}
+ local originals={}
+ resources.tounicode=tounicode
+ resources.originals=originals
+ local lumunic,uparser,oparser
+ local cidinfo,cidnames,cidcodes,usedmap
+ if false then
+ lumunic=loadlumtable(filename)
+ lumunic=lumunic and lumunic.tounicode
+ end
+ cidinfo=properties.cidinfo
+ usedmap=cidinfo and fonts.cid.getmap(cidinfo)
+ if usedmap then
+ oparser=usedmap and makenameparser(cidinfo.ordering)
+ cidnames=usedmap.names
+ cidcodes=usedmap.unicodes
+ end
+ uparser=makenameparser()
+ local ns,nl=0,0
+ for unic,glyph in next,descriptions do
+ local index=glyph.index
+ local name=glyph.name
+ if unic==-1 or unic>=private or (unic>=0xE000 and unic<=0xF8FF) or unic==0xFFFE or unic==0xFFFF then
+ local unicode=lumunic and lumunic[name] or unicodevector[name]
+ if unicode then
+ originals[index]=unicode
+ tounicode[index]=tounicode16(unicode,name)
+ ns=ns+1
+ end
+ if (not unicode) and usedmap then
+ local foundindex=lpegmatch(oparser,name)
+ if foundindex then
+ unicode=cidcodes[foundindex]
+ if unicode then
+ originals[index]=unicode
+ tounicode[index]=tounicode16(unicode,name)
+ ns=ns+1
+ else
+ local reference=cidnames[foundindex]
+ if reference then
+ local foundindex=lpegmatch(oparser,reference)
+ if foundindex then
+ unicode=cidcodes[foundindex]
+ if unicode then
+ originals[index]=unicode
+ tounicode[index]=tounicode16(unicode,name)
+ ns=ns+1
+ end
+ end
+ if not unicode or unicode=="" then
+ local foundcodes,multiple=lpegmatch(uparser,reference)
+ if foundcodes then
+ originals[index]=foundcodes
+ if multiple then
+ tounicode[index]=tounicode16sequence(foundcodes)
+ nl=nl+1
+ unicode=true
+ else
+ tounicode[index]=tounicode16(foundcodes,name)
+ ns=ns+1
+ unicode=foundcodes
+ end
+ end
+ end
+ end
+ end
+ end
+ end
+ if not unicode or unicode=="" then
+ local split=lpegmatch(namesplitter,name)
+ local nsplit=split and #split or 0
+ local t,n={},0
+ unicode=true
+ for l=1,nsplit do
+ local base=split[l]
+ local u=unicodes[base] or unicodevector[base]
+ if not u then
+ break
+ elseif type(u)=="table" then
+ if u[1]>=private then
+ unicode=false
+ break
+ end
+ n=n+1
+ t[n]=u[1]
+ else
+ if u>=private then
+ unicode=false
+ break
+ end
+ n=n+1
+ t[n]=u
+ end
+ end
+ if n==0 then
+ elseif n==1 then
+ originals[index]=t[1]
+ tounicode[index]=tounicode16(t[1],name)
+ else
+ originals[index]=t
+ tounicode[index]=tounicode16sequence(t)
+ end
+ nl=nl+1
+ end
+ if not unicode or unicode=="" then
+ local foundcodes,multiple=lpegmatch(uparser,name)
+ if foundcodes then
+ if multiple then
+ originals[index]=foundcodes
+ tounicode[index]=tounicode16sequence(foundcodes,name)
+ nl=nl+1
+ unicode=true
+ else
+ originals[index]=foundcodes
+ tounicode[index]=tounicode16(foundcodes,name)
+ ns=ns+1
+ unicode=foundcodes
+ end
+ end
+ end
+ end
+ end
+ if trace_mapping then
+ for unic,glyph in table.sortedhash(descriptions) do
+ local name=glyph.name
+ local index=glyph.index
+ local toun=tounicode[index]
+ if toun then
+ report_fonts("internal slot %U, name %a, unicode %U, tounicode %a",index,name,unic,toun)
+ else
+ report_fonts("internal slot %U, name %a, unicode %U",index,name,unic)
+ end
+ end
+ end
+ if trace_loading and (ns>0 or nl>0) then
+ report_fonts("%s tounicode entries added, ligatures %s",nl+ns,ns)
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['luatex-fonts-syn']={
+ version=1.001,
+ comment="companion to luatex-*.tex",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+if context then
+ texio.write_nl("fatal error: this module is not for context")
+ os.exit()
+end
+local fonts=fonts
+fonts.names=fonts.names or {}
+fonts.names.version=1.001
+fonts.names.basename="luatex-fonts-names"
+fonts.names.new_to_old={}
+fonts.names.old_to_new={}
+fonts.names.cache=containers.define("fonts","data",fonts.names.version,true)
+local data,loaded=nil,false
+local fileformats={ "lua","tex","other text files" }
+function fonts.names.reportmissingbase()
+ texio.write("<missing font database, run: mtxrun --script fonts --reload --simple>")
+ fonts.names.reportmissingbase=nil
+end
+function fonts.names.reportmissingname()
+ texio.write("<unknown font in database, run: mtxrun --script fonts --reload --simple>")
+ fonts.names.reportmissingname=nil
+end
+function fonts.names.resolve(name,sub)
+ if not loaded then
+ local basename=fonts.names.basename
+ if basename and basename~="" then
+ data=containers.read(fonts.names.cache,basename)
+ if not data then
+ basename=file.addsuffix(basename,"lua")
+ for i=1,#fileformats do
+ local format=fileformats[i]
+ local foundname=resolvers.findfile(basename,format) or ""
+ if foundname~="" then
+ data=dofile(foundname)
+ texio.write("<font database loaded: ",foundname,">")
+ break
+ end
+ end
+ end
+ end
+ loaded=true
+ end
+ if type(data)=="table" and data.version==fonts.names.version then
+ local condensed=string.gsub(string.lower(name),"[^%a%d]","")
+ local found=data.mappings and data.mappings[condensed]
+ if found then
+ local fontname,filename,subfont=found[1],found[2],found[3]
+ if subfont then
+ return filename,fontname
+ else
+ return filename,false
+ end
+ elseif fonts.names.reportmissingname then
+ fonts.names.reportmissingname()
+ return name,false
+ end
+ elseif fonts.names.reportmissingbase then
+ fonts.names.reportmissingbase()
+ end
+end
+fonts.names.resolvespec=fonts.names.resolve
+function fonts.names.getfilename(askedname,suffix)
+ return ""
+end
+function fonts.names.ignoredfile(filename)
+ return false
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-tfm']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local next=next
+local match=string.match
+local trace_defining=false trackers.register("fonts.defining",function(v) trace_defining=v end)
+local trace_features=false trackers.register("tfm.features",function(v) trace_features=v end)
+local report_defining=logs.reporter("fonts","defining")
+local report_tfm=logs.reporter("fonts","tfm loading")
+local findbinfile=resolvers.findbinfile
+local fonts=fonts
+local handlers=fonts.handlers
+local readers=fonts.readers
+local constructors=fonts.constructors
+local encodings=fonts.encodings
+local tfm=constructors.newhandler("tfm")
+local tfmfeatures=constructors.newfeatures("tfm")
+local registertfmfeature=tfmfeatures.register
+constructors.resolvevirtualtoo=false
+fonts.formats.tfm="type1"
+function tfm.setfeatures(tfmdata,features)
+ local okay=constructors.initializefeatures("tfm",tfmdata,features,trace_features,report_tfm)
+ if okay then
+ return constructors.collectprocessors("tfm",tfmdata,features,trace_features,report_tfm)
+ else
+ return {}
+ end
+end
+local function read_from_tfm(specification)
+ local filename=specification.filename
+ local size=specification.size
+ if trace_defining then
+ report_defining("loading tfm file %a at size %s",filename,size)
+ end
+ local tfmdata=font.read_tfm(filename,size)
+ if tfmdata then
+ local features=specification.features and specification.features.normal or {}
+ local resources=tfmdata.resources or {}
+ local properties=tfmdata.properties or {}
+ local parameters=tfmdata.parameters or {}
+ local shared=tfmdata.shared or {}
+ properties.name=tfmdata.name
+ properties.fontname=tfmdata.fontname
+ properties.psname=tfmdata.psname
+ properties.filename=specification.filename
+ parameters.size=size
+ shared.rawdata={}
+ shared.features=features
+ shared.processes=next(features) and tfm.setfeatures(tfmdata,features) or nil
+ tfmdata.properties=properties
+ tfmdata.resources=resources
+ tfmdata.parameters=parameters
+ tfmdata.shared=shared
+ parameters.slant=parameters.slant or parameters[1] or 0
+ parameters.space=parameters.space or parameters[2] or 0
+ parameters.space_stretch=parameters.space_stretch or parameters[3] or 0
+ parameters.space_shrink=parameters.space_shrink or parameters[4] or 0
+ parameters.x_height=parameters.x_height or parameters[5] or 0
+ parameters.quad=parameters.quad or parameters[6] or 0
+ parameters.extra_space=parameters.extra_space or parameters[7] or 0
+ constructors.enhanceparameters(parameters)
+ if constructors.resolvevirtualtoo then
+ fonts.loggers.register(tfmdata,file.suffix(filename),specification)
+ local vfname=findbinfile(specification.name,'ovf')
+ if vfname and vfname~="" then
+ local vfdata=font.read_vf(vfname,size)
+ if vfdata then
+ local chars=tfmdata.characters
+ for k,v in next,vfdata.characters do
+ chars[k].commands=v.commands
+ end
+ properties.virtualized=true
+ tfmdata.fonts=vfdata.fonts
+ end
+ end
+ end
+ local allfeatures=tfmdata.shared.features or specification.features.normal
+ constructors.applymanipulators("tfm",tfmdata,allfeatures.normal,trace_features,report_tfm)
+ if not features.encoding then
+ local encoding,filename=match(properties.filename,"^(.-)%-(.*)$")
+ if filename and encoding and encodings.known and encodings.known[encoding] then
+ features.encoding=encoding
+ end
+ end
+ return tfmdata
+ end
+end
+local function check_tfm(specification,fullname)
+ local foundname=findbinfile(fullname,'tfm') or ""
+ if foundname=="" then
+ foundname=findbinfile(fullname,'ofm') or ""
+ end
+ if foundname=="" then
+ foundname=fonts.names.getfilename(fullname,"tfm") or ""
+ end
+ if foundname~="" then
+ specification.filename=foundname
+ specification.format="ofm"
+ return read_from_tfm(specification)
+ elseif trace_defining then
+ report_defining("loading tfm with name %a fails",specification.name)
+ end
+end
+readers.check_tfm=check_tfm
+function readers.tfm(specification)
+ local fullname=specification.filename or ""
+ if fullname=="" then
+ local forced=specification.forced or ""
+ if forced~="" then
+ fullname=specification.name.."."..forced
+ else
+ fullname=specification.name
+ end
+ end
+ return check_tfm(specification,fullname)
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-afm']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local fonts,logs,trackers,containers,resolvers=fonts,logs,trackers,containers,resolvers
+local next,type,tonumber=next,type,tonumber
+local format,match,gmatch,lower,gsub,strip=string.format,string.match,string.gmatch,string.lower,string.gsub,string.strip
+local abs=math.abs
+local P,S,C,R,lpegmatch,patterns=lpeg.P,lpeg.S,lpeg.C,lpeg.R,lpeg.match,lpeg.patterns
+local derivetable=table.derive
+local trace_features=false trackers.register("afm.features",function(v) trace_features=v end)
+local trace_indexing=false trackers.register("afm.indexing",function(v) trace_indexing=v end)
+local trace_loading=false trackers.register("afm.loading",function(v) trace_loading=v end)
+local trace_defining=false trackers.register("fonts.defining",function(v) trace_defining=v end)
+local report_afm=logs.reporter("fonts","afm loading")
+local findbinfile=resolvers.findbinfile
+local definers=fonts.definers
+local readers=fonts.readers
+local constructors=fonts.constructors
+local afm=constructors.newhandler("afm")
+local pfb=constructors.newhandler("pfb")
+local afmfeatures=constructors.newfeatures("afm")
+local registerafmfeature=afmfeatures.register
+afm.version=1.410
+afm.cache=containers.define("fonts","afm",afm.version,true)
+afm.autoprefixed=true
+afm.helpdata={}
+afm.syncspace=true
+afm.addligatures=true
+afm.addtexligatures=true
+afm.addkerns=true
+local applyruntimefixes=fonts.treatments and fonts.treatments.applyfixes
+local function setmode(tfmdata,value)
+ if value then
+ tfmdata.properties.mode=lower(value)
+ end
+end
+registerafmfeature {
+ name="mode",
+ description="mode",
+ initializers={
+ base=setmode,
+ node=setmode,
+ }
+}
+local comment=P("Comment")
+local spacing=patterns.spacer
+local lineend=patterns.newline
+local words=C((1-lineend)^1)
+local number=C((R("09")+S("."))^1)/tonumber*spacing^0
+local data=lpeg.Carg(1)
+local pattern=(
+ comment*spacing*(
+ data*(
+ ("CODINGSCHEME"*spacing*words )/function(fd,a) end+("DESIGNSIZE"*spacing*number*words )/function(fd,a) fd[ 1]=a end+("CHECKSUM"*spacing*number*words )/function(fd,a) fd[ 2]=a end+("SPACE"*spacing*number*"plus"*number*"minus"*number)/function(fd,a,b,c) fd[ 3],fd[ 4],fd[ 5]=a,b,c end+("QUAD"*spacing*number )/function(fd,a) fd[ 6]=a end+("EXTRASPACE"*spacing*number )/function(fd,a) fd[ 7]=a end+("NUM"*spacing*number*number*number )/function(fd,a,b,c) fd[ 8],fd[ 9],fd[10]=a,b,c end+("DENOM"*spacing*number*number )/function(fd,a,b ) fd[11],fd[12]=a,b end+("SUP"*spacing*number*number*number )/function(fd,a,b,c) fd[13],fd[14],fd[15]=a,b,c end+("SUB"*spacing*number*number )/function(fd,a,b) fd[16],fd[17]=a,b end+("SUPDROP"*spacing*number )/function(fd,a) fd[18]=a end+("SUBDROP"*spacing*number )/function(fd,a) fd[19]=a end+("DELIM"*spacing*number*number )/function(fd,a,b) fd[20],fd[21]=a,b end+("AXISHEIGHT"*spacing*number )/function(fd,a) fd[22]=a end
+ )+(1-lineend)^0
+ )+(1-comment)^1
+)^0
+local function scan_comment(str)
+ local fd={}
+ lpegmatch(pattern,str,1,fd)
+ return fd
+end
+local keys={}
+function keys.FontName (data,line) data.metadata.fontname=strip (line)
+ data.metadata.fullname=strip (line) end
+function keys.ItalicAngle (data,line) data.metadata.italicangle=tonumber (line) end
+function keys.IsFixedPitch(data,line) data.metadata.isfixedpitch=toboolean(line,true) end
+function keys.CharWidth (data,line) data.metadata.charwidth=tonumber (line) end
+function keys.XHeight (data,line) data.metadata.xheight=tonumber (line) end
+function keys.Descender (data,line) data.metadata.descender=tonumber (line) end
+function keys.Ascender (data,line) data.metadata.ascender=tonumber (line) end
+function keys.Comment (data,line)
+ line=lower(line)
+ local designsize=match(line,"designsize[^%d]*(%d+)")
+ if designsize then data.metadata.designsize=tonumber(designsize) end
+end
+local function get_charmetrics(data,charmetrics,vector)
+ local characters=data.characters
+ local chr,ind={},0
+ for k,v in gmatch(charmetrics,"([%a]+) +(.-) *;") do
+ if k=='C' then
+ v=tonumber(v)
+ if v<0 then
+ ind=ind+1
+ else
+ ind=v
+ end
+ chr={
+ index=ind
+ }
+ elseif k=='WX' then
+ chr.width=tonumber(v)
+ elseif k=='N' then
+ characters[v]=chr
+ elseif k=='B' then
+ local llx,lly,urx,ury=match(v,"^ *(.-) +(.-) +(.-) +(.-)$")
+ chr.boundingbox={ tonumber(llx),tonumber(lly),tonumber(urx),tonumber(ury) }
+ elseif k=='L' then
+ local plus,becomes=match(v,"^(.-) +(.-)$")
+ local ligatures=chr.ligatures
+ if ligatures then
+ ligatures[plus]=becomes
+ else
+ chr.ligatures={ [plus]=becomes }
+ end
+ end
+ end
+end
+local function get_kernpairs(data,kernpairs)
+ local characters=data.characters
+ for one,two,value in gmatch(kernpairs,"KPX +(.-) +(.-) +(.-)\n") do
+ local chr=characters[one]
+ if chr then
+ local kerns=chr.kerns
+ if kerns then
+ kerns[two]=tonumber(value)
+ else
+ chr.kerns={ [two]=tonumber(value) }
+ end
+ end
+ end
+end
+local function get_variables(data,fontmetrics)
+ for key,rest in gmatch(fontmetrics,"(%a+) *(.-)[\n\r]") do
+ local keyhandler=keys[key]
+ if keyhandler then
+ keyhandler(data,rest)
+ end
+ end
+end
+local function get_indexes(data,pfbname)
+ data.resources.filename=resolvers.unresolve(pfbname)
+ local pfbblob=fontloader.open(pfbname)
+ if pfbblob then
+ local characters=data.characters
+ local pfbdata=fontloader.to_table(pfbblob)
+ if pfbdata then
+ local glyphs=pfbdata.glyphs
+ if glyphs then
+ if trace_loading then
+ report_afm("getting index data from %a",pfbname)
+ end
+ for index,glyph in next,glyphs do
+ local name=glyph.name
+ if name then
+ local char=characters[name]
+ if char then
+ if trace_indexing then
+ report_afm("glyph %a has index %a",name,index)
+ end
+ char.index=index
+ end
+ end
+ end
+ elseif trace_loading then
+ report_afm("no glyph data in pfb file %a",pfbname)
+ end
+ elseif trace_loading then
+ report_afm("no data in pfb file %a",pfbname)
+ end
+ fontloader.close(pfbblob)
+ elseif trace_loading then
+ report_afm("invalid pfb file %a",pfbname)
+ end
+end
+local function readafm(filename)
+ local ok,afmblob,size=resolvers.loadbinfile(filename)
+ if ok and afmblob then
+ local data={
+ resources={
+ filename=resolvers.unresolve(filename),
+ version=afm.version,
+ creator="context mkiv",
+ },
+ properties={
+ hasitalics=false,
+ },
+ goodies={},
+ metadata={
+ filename=file.removesuffix(file.basename(filename))
+ },
+ characters={
+ },
+ descriptions={
+ },
+ }
+ afmblob=gsub(afmblob,"StartCharMetrics(.-)EndCharMetrics",function(charmetrics)
+ if trace_loading then
+ report_afm("loading char metrics")
+ end
+ get_charmetrics(data,charmetrics,vector)
+ return ""
+ end)
+ afmblob=gsub(afmblob,"StartKernPairs(.-)EndKernPairs",function(kernpairs)
+ if trace_loading then
+ report_afm("loading kern pairs")
+ end
+ get_kernpairs(data,kernpairs)
+ return ""
+ end)
+ afmblob=gsub(afmblob,"StartFontMetrics%s+([%d%.]+)(.-)EndFontMetrics",function(version,fontmetrics)
+ if trace_loading then
+ report_afm("loading variables")
+ end
+ data.afmversion=version
+ get_variables(data,fontmetrics)
+ data.fontdimens=scan_comment(fontmetrics)
+ return ""
+ end)
+ return data
+ else
+ if trace_loading then
+ report_afm("no valid afm file %a",filename)
+ end
+ return nil
+ end
+end
+local addkerns,addligatures,addtexligatures,unify,normalize
+function afm.load(filename)
+ filename=resolvers.findfile(filename,'afm') or ""
+ if filename~="" and not fonts.names.ignoredfile(filename) then
+ local name=file.removesuffix(file.basename(filename))
+ local data=containers.read(afm.cache,name)
+ local attr=lfs.attributes(filename)
+ local size,time=attr.size or 0,attr.modification or 0
+ local pfbfile=file.replacesuffix(name,"pfb")
+ local pfbname=resolvers.findfile(pfbfile,"pfb") or ""
+ if pfbname=="" then
+ pfbname=resolvers.findfile(file.basename(pfbfile),"pfb") or ""
+ end
+ local pfbsize,pfbtime=0,0
+ if pfbname~="" then
+ local attr=lfs.attributes(pfbname)
+ pfbsize=attr.size or 0
+ pfbtime=attr.modification or 0
+ end
+ if not data or data.size~=size or data.time~=time or data.pfbsize~=pfbsize or data.pfbtime~=pfbtime then
+ report_afm("reading %a",filename)
+ data=readafm(filename)
+ if data then
+ if pfbname~="" then
+ get_indexes(data,pfbname)
+ elseif trace_loading then
+ report_afm("no pfb file for %a",filename)
+ end
+ report_afm("unifying %a",filename)
+ unify(data,filename)
+ if afm.addligatures then
+ report_afm("add ligatures")
+ addligatures(data)
+ end
+ if afm.addtexligatures then
+ report_afm("add tex ligatures")
+ addtexligatures(data)
+ end
+ if afm.addkerns then
+ report_afm("add extra kerns")
+ addkerns(data)
+ end
+ normalize(data)
+ report_afm("add tounicode data")
+ fonts.mappings.addtounicode(data,filename)
+ data.size=size
+ data.time=time
+ data.pfbsize=pfbsize
+ data.pfbtime=pfbtime
+ report_afm("saving %a in cache",name)
+ data=containers.write(afm.cache,name,data)
+ data=containers.read(afm.cache,name)
+ end
+ if applyruntimefixes and data then
+ applyruntimefixes(filename,data)
+ end
+ end
+ return data
+ else
+ return nil
+ end
+end
+local uparser=fonts.mappings.makenameparser()
+unify=function(data,filename)
+ local unicodevector=fonts.encodings.agl.unicodes
+ local unicodes,names={},{}
+ local private=constructors.privateoffset
+ local descriptions=data.descriptions
+ for name,blob in next,data.characters do
+ local code=unicodevector[name]
+ if not code then
+ code=lpegmatch(uparser,name)
+ if not code then
+ code=private
+ private=private+1
+ report_afm("assigning private slot %U for unknown glyph name %a",code,name)
+ end
+ end
+ local index=blob.index
+ unicodes[name]=code
+ names[name]=index
+ blob.name=name
+ descriptions[code]={
+ boundingbox=blob.boundingbox,
+ width=blob.width,
+ kerns=blob.kerns,
+ index=index,
+ name=name,
+ }
+ end
+ for unicode,description in next,descriptions do
+ local kerns=description.kerns
+ if kerns then
+ local krn={}
+ for name,kern in next,kerns do
+ local unicode=unicodes[name]
+ if unicode then
+ krn[unicode]=kern
+ else
+ end
+ end
+ description.kerns=krn
+ end
+ end
+ data.characters=nil
+ local resources=data.resources
+ local filename=resources.filename or file.removesuffix(file.basename(filename))
+ resources.filename=resolvers.unresolve(filename)
+ resources.unicodes=unicodes
+ resources.marks={}
+ resources.names=names
+ resources.private=private
+end
+normalize=function(data)
+end
+local addthem=function(rawdata,ligatures)
+ if ligatures then
+ local descriptions=rawdata.descriptions
+ local resources=rawdata.resources
+ local unicodes=resources.unicodes
+ local names=resources.names
+ for ligname,ligdata in next,ligatures do
+ local one=descriptions[unicodes[ligname]]
+ if one then
+ for _,pair in next,ligdata do
+ local two,three=unicodes[pair[1]],unicodes[pair[2]]
+ if two and three then
+ local ol=one.ligatures
+ if ol then
+ if not ol[two] then
+ ol[two]=three
+ end
+ else
+ one.ligatures={ [two]=three }
+ end
+ end
+ end
+ end
+ end
+ end
+end
+addligatures=function(rawdata) addthem(rawdata,afm.helpdata.ligatures ) end
+addtexligatures=function(rawdata) addthem(rawdata,afm.helpdata.texligatures) end
+addkerns=function(rawdata)
+ local descriptions=rawdata.descriptions
+ local resources=rawdata.resources
+ local unicodes=resources.unicodes
+ local function do_it_left(what)
+ if what then
+ for unicode,description in next,descriptions do
+ local kerns=description.kerns
+ if kerns then
+ local extrakerns
+ for complex,simple in next,what do
+ complex=unicodes[complex]
+ simple=unicodes[simple]
+ if complex and simple then
+ local ks=kerns[simple]
+ if ks and not kerns[complex] then
+ if extrakerns then
+ extrakerns[complex]=ks
+ else
+ extrakerns={ [complex]=ks }
+ end
+ end
+ end
+ end
+ if extrakerns then
+ description.extrakerns=extrakerns
+ end
+ end
+ end
+ end
+ end
+ local function do_it_copy(what)
+ if what then
+ for complex,simple in next,what do
+ complex=unicodes[complex]
+ simple=unicodes[simple]
+ if complex and simple then
+ local complexdescription=descriptions[complex]
+ if complexdescription then
+ local simpledescription=descriptions[complex]
+ if simpledescription then
+ local extrakerns
+ local kerns=simpledescription.kerns
+ if kerns then
+ for unicode,kern in next,kerns do
+ if extrakerns then
+ extrakerns[unicode]=kern
+ else
+ extrakerns={ [unicode]=kern }
+ end
+ end
+ end
+ local extrakerns=simpledescription.extrakerns
+ if extrakerns then
+ for unicode,kern in next,extrakerns do
+ if extrakerns then
+ extrakerns[unicode]=kern
+ else
+ extrakerns={ [unicode]=kern }
+ end
+ end
+ end
+ if extrakerns then
+ complexdescription.extrakerns=extrakerns
+ end
+ end
+ end
+ end
+ end
+ end
+ end
+ do_it_left(afm.helpdata.leftkerned)
+ do_it_left(afm.helpdata.bothkerned)
+ do_it_copy(afm.helpdata.bothkerned)
+ do_it_copy(afm.helpdata.rightkerned)
+end
+local function adddimensions(data)
+ if data then
+ for unicode,description in next,data.descriptions do
+ local bb=description.boundingbox
+ if bb then
+ local ht,dp=bb[4],-bb[2]
+ if ht==0 or ht<0 then
+ else
+ description.height=ht
+ end
+ if dp==0 or dp<0 then
+ else
+ description.depth=dp
+ end
+ end
+ end
+ end
+end
+local function copytotfm(data)
+ if data and data.descriptions then
+ local metadata=data.metadata
+ local resources=data.resources
+ local properties=derivetable(data.properties)
+ local descriptions=derivetable(data.descriptions)
+ local goodies=derivetable(data.goodies)
+ local characters={}
+ local parameters={}
+ local unicodes=resources.unicodes
+ for unicode,description in next,data.descriptions do
+ characters[unicode]={}
+ end
+ local filename=constructors.checkedfilename(resources)
+ local fontname=metadata.fontname or metadata.fullname
+ local fullname=metadata.fullname or metadata.fontname
+ local endash=unicodes['space']
+ local emdash=unicodes['emdash']
+ local spacer="space"
+ local spaceunits=500
+ local monospaced=metadata.isfixedpitch
+ local charwidth=metadata.charwidth
+ local italicangle=metadata.italicangle
+ local charxheight=metadata.xheight and metadata.xheight>0 and metadata.xheight
+ properties.monospaced=monospaced
+ parameters.italicangle=italicangle
+ parameters.charwidth=charwidth
+ parameters.charxheight=charxheight
+ if properties.monospaced then
+ if descriptions[endash] then
+ spaceunits,spacer=descriptions[endash].width,"space"
+ end
+ if not spaceunits and descriptions[emdash] then
+ spaceunits,spacer=descriptions[emdash].width,"emdash"
+ end
+ if not spaceunits and charwidth then
+ spaceunits,spacer=charwidth,"charwidth"
+ end
+ else
+ if descriptions[endash] then
+ spaceunits,spacer=descriptions[endash].width,"space"
+ end
+ if not spaceunits and charwidth then
+ spaceunits,spacer=charwidth,"charwidth"
+ end
+ end
+ spaceunits=tonumber(spaceunits)
+ if spaceunits<200 then
+ end
+ parameters.slant=0
+ parameters.space=spaceunits
+ parameters.space_stretch=500
+ parameters.space_shrink=333
+ parameters.x_height=400
+ parameters.quad=1000
+ if italicangle and italicangle~=0 then
+ parameters.italicangle=italicangle
+ parameters.italicfactor=math.cos(math.rad(90+italicangle))
+ parameters.slant=- math.tan(italicangle*math.pi/180)
+ end
+ if monospaced then
+ parameters.space_stretch=0
+ parameters.space_shrink=0
+ elseif afm.syncspace then
+ parameters.space_stretch=spaceunits/2
+ parameters.space_shrink=spaceunits/3
+ end
+ parameters.extra_space=parameters.space_shrink
+ if charxheight then
+ parameters.x_height=charxheight
+ else
+ local x=unicodes['x']
+ if x then
+ local x=descriptions[x]
+ if x then
+ parameters.x_height=x.height
+ end
+ end
+ end
+ local fd=data.fontdimens
+ if fd and fd[8] and fd[9] and fd[10] then
+ for k,v in next,fd do
+ parameters[k]=v
+ end
+ end
+ parameters.designsize=(metadata.designsize or 10)*65536
+ parameters.ascender=abs(metadata.ascender or 0)
+ parameters.descender=abs(metadata.descender or 0)
+ parameters.units=1000
+ properties.spacer=spacer
+ properties.encodingbytes=2
+ properties.format=fonts.formats[filename] or "type1"
+ properties.filename=filename
+ properties.fontname=fontname
+ properties.fullname=fullname
+ properties.psname=fullname
+ properties.name=filename or fullname or fontname
+ if next(characters) then
+ return {
+ characters=characters,
+ descriptions=descriptions,
+ parameters=parameters,
+ resources=resources,
+ properties=properties,
+ goodies=goodies,
+ }
+ end
+ end
+ return nil
+end
+function afm.setfeatures(tfmdata,features)
+ local okay=constructors.initializefeatures("afm",tfmdata,features,trace_features,report_afm)
+ if okay then
+ return constructors.collectprocessors("afm",tfmdata,features,trace_features,report_afm)
+ else
+ return {}
+ end
+end
+local function checkfeatures(specification)
+end
+local function afmtotfm(specification)
+ local afmname=specification.filename or specification.name
+ if specification.forced=="afm" or specification.format=="afm" then
+ if trace_loading then
+ report_afm("forcing afm format for %a",afmname)
+ end
+ else
+ local tfmname=findbinfile(afmname,"ofm") or ""
+ if tfmname~="" then
+ if trace_loading then
+ report_afm("fallback from afm to tfm for %a",afmname)
+ end
+ return
+ end
+ end
+ if afmname~="" then
+ local features=constructors.checkedfeatures("afm",specification.features.normal)
+ specification.features.normal=features
+ constructors.hashinstance(specification,true)
+ specification=definers.resolve(specification)
+ local cache_id=specification.hash
+ local tfmdata=containers.read(constructors.cache,cache_id)
+ if not tfmdata then
+ local rawdata=afm.load(afmname)
+ if rawdata and next(rawdata) then
+ adddimensions(rawdata)
+ tfmdata=copytotfm(rawdata)
+ if tfmdata and next(tfmdata) then
+ local shared=tfmdata.shared
+ if not shared then
+ shared={}
+ tfmdata.shared=shared
+ end
+ shared.rawdata=rawdata
+ shared.features=features
+ shared.processes=afm.setfeatures(tfmdata,features)
+ end
+ elseif trace_loading then
+ report_afm("no (valid) afm file found with name %a",afmname)
+ end
+ tfmdata=containers.write(constructors.cache,cache_id,tfmdata)
+ end
+ return tfmdata
+ end
+end
+local function read_from_afm(specification)
+ local tfmdata=afmtotfm(specification)
+ if tfmdata then
+ tfmdata.properties.name=specification.name
+ tfmdata=constructors.scale(tfmdata,specification)
+ local allfeatures=tfmdata.shared.features or specification.features.normal
+ constructors.applymanipulators("afm",tfmdata,allfeatures,trace_features,report_afm)
+ fonts.loggers.register(tfmdata,'afm',specification)
+ end
+ return tfmdata
+end
+local function prepareligatures(tfmdata,ligatures,value)
+ if value then
+ local descriptions=tfmdata.descriptions
+ for unicode,character in next,tfmdata.characters do
+ local description=descriptions[unicode]
+ local dligatures=description.ligatures
+ if dligatures then
+ local cligatures=character.ligatures
+ if not cligatures then
+ cligatures={}
+ character.ligatures=cligatures
+ end
+ for unicode,ligature in next,dligatures do
+ cligatures[unicode]={
+ char=ligature,
+ type=0
+ }
+ end
+ end
+ end
+ end
+end
+local function preparekerns(tfmdata,kerns,value)
+ if value then
+ local rawdata=tfmdata.shared.rawdata
+ local resources=rawdata.resources
+ local unicodes=resources.unicodes
+ local descriptions=tfmdata.descriptions
+ for u,chr in next,tfmdata.characters do
+ local d=descriptions[u]
+ local newkerns=d[kerns]
+ if newkerns then
+ local kerns=chr.kerns
+ if not kerns then
+ kerns={}
+ chr.kerns=kerns
+ end
+ for k,v in next,newkerns do
+ local uk=unicodes[k]
+ if uk then
+ kerns[uk]=v
+ end
+ end
+ end
+ end
+ end
+end
+local list={
+ [0x0027]=0x2019,
+}
+local function texreplacements(tfmdata,value)
+ local descriptions=tfmdata.descriptions
+ local characters=tfmdata.characters
+ for k,v in next,list do
+ characters [k]=characters [v]
+ descriptions[k]=descriptions[v]
+ end
+end
+local function ligatures (tfmdata,value) prepareligatures(tfmdata,'ligatures',value) end
+local function texligatures(tfmdata,value) prepareligatures(tfmdata,'texligatures',value) end
+local function kerns (tfmdata,value) preparekerns (tfmdata,'kerns',value) end
+local function extrakerns (tfmdata,value) preparekerns (tfmdata,'extrakerns',value) end
+registerafmfeature {
+ name="liga",
+ description="traditional ligatures",
+ initializers={
+ base=ligatures,
+ node=ligatures,
+ }
+}
+registerafmfeature {
+ name="kern",
+ description="intercharacter kerning",
+ initializers={
+ base=kerns,
+ node=kerns,
+ }
+}
+registerafmfeature {
+ name="extrakerns",
+ description="additional intercharacter kerning",
+ initializers={
+ base=extrakerns,
+ node=extrakerns,
+ }
+}
+registerafmfeature {
+ name='tlig',
+ description='tex ligatures',
+ initializers={
+ base=texligatures,
+ node=texligatures,
+ }
+}
+registerafmfeature {
+ name='trep',
+ description='tex replacements',
+ initializers={
+ base=texreplacements,
+ node=texreplacements,
+ }
+}
+local check_tfm=readers.check_tfm
+fonts.formats.afm="type1"
+fonts.formats.pfb="type1"
+local function check_afm(specification,fullname)
+ local foundname=findbinfile(fullname,'afm') or ""
+ if foundname=="" then
+ foundname=fonts.names.getfilename(fullname,"afm") or ""
+ end
+ if foundname=="" and afm.autoprefixed then
+ local encoding,shortname=match(fullname,"^(.-)%-(.*)$")
+ if encoding and shortname and fonts.encodings.known[encoding] then
+ shortname=findbinfile(shortname,'afm') or ""
+ if shortname~="" then
+ foundname=shortname
+ if trace_defining then
+ report_afm("stripping encoding prefix from filename %a",afmname)
+ end
+ end
+ end
+ end
+ if foundname~="" then
+ specification.filename=foundname
+ specification.format="afm"
+ return read_from_afm(specification)
+ end
+end
+function readers.afm(specification,method)
+ local fullname,tfmdata=specification.filename or "",nil
+ if fullname=="" then
+ local forced=specification.forced or ""
+ if forced~="" then
+ tfmdata=check_afm(specification,specification.name.."."..forced)
+ end
+ if not tfmdata then
+ method=method or definers.method or "afm or tfm"
+ if method=="tfm" then
+ tfmdata=check_tfm(specification,specification.name)
+ elseif method=="afm" then
+ tfmdata=check_afm(specification,specification.name)
+ elseif method=="tfm or afm" then
+ tfmdata=check_tfm(specification,specification.name) or check_afm(specification,specification.name)
+ else
+ tfmdata=check_afm(specification,specification.name) or check_tfm(specification,specification.name)
+ end
+ end
+ else
+ tfmdata=check_afm(specification,fullname)
+ end
+ return tfmdata
+end
+function readers.pfb(specification,method)
+ local original=specification.specification
+ if trace_defining then
+ report_afm("using afm reader for %a",original)
+ end
+ specification.specification=gsub(original,"%.pfb",".afm")
+ specification.forced="afm"
+ return readers.afm(specification,method)
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-afk']={
+ version=1.001,
+ comment="companion to font-afm.lua",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files",
+ dataonly=true,
+}
+local allocate=utilities.storage.allocate
+fonts.handlers.afm.helpdata={
+ ligatures=allocate {
+ ['f']={
+ { 'f','ff' },
+ { 'i','fi' },
+ { 'l','fl' },
+ },
+ ['ff']={
+ { 'i','ffi' }
+ },
+ ['fi']={
+ { 'i','fii' }
+ },
+ ['fl']={
+ { 'i','fli' }
+ },
+ ['s']={
+ { 't','st' }
+ },
+ ['i']={
+ { 'j','ij' }
+ },
+ },
+ texligatures=allocate {
+ ['quoteleft']={
+ { 'quoteleft','quotedblleft' }
+ },
+ ['quoteright']={
+ { 'quoteright','quotedblright' }
+ },
+ ['hyphen']={
+ { 'hyphen','endash' }
+ },
+ ['endash']={
+ { 'hyphen','emdash' }
+ }
+ },
+ leftkerned=allocate {
+ AEligature="A",aeligature="a",
+ OEligature="O",oeligature="o",
+ IJligature="I",ijligature="i",
+ AE="A",ae="a",
+ OE="O",oe="o",
+ IJ="I",ij="i",
+ Ssharp="S",ssharp="s",
+ },
+ rightkerned=allocate {
+ AEligature="E",aeligature="e",
+ OEligature="E",oeligature="e",
+ IJligature="J",ijligature="j",
+ AE="E",ae="e",
+ OE="E",oe="e",
+ IJ="J",ij="j",
+ Ssharp="S",ssharp="s",
+ },
+ bothkerned=allocate {
+ Acircumflex="A",acircumflex="a",
+ Ccircumflex="C",ccircumflex="c",
+ Ecircumflex="E",ecircumflex="e",
+ Gcircumflex="G",gcircumflex="g",
+ Hcircumflex="H",hcircumflex="h",
+ Icircumflex="I",icircumflex="i",
+ Jcircumflex="J",jcircumflex="j",
+ Ocircumflex="O",ocircumflex="o",
+ Scircumflex="S",scircumflex="s",
+ Ucircumflex="U",ucircumflex="u",
+ Wcircumflex="W",wcircumflex="w",
+ Ycircumflex="Y",ycircumflex="y",
+ Agrave="A",agrave="a",
+ Egrave="E",egrave="e",
+ Igrave="I",igrave="i",
+ Ograve="O",ograve="o",
+ Ugrave="U",ugrave="u",
+ Ygrave="Y",ygrave="y",
+ Atilde="A",atilde="a",
+ Itilde="I",itilde="i",
+ Otilde="O",otilde="o",
+ Utilde="U",utilde="u",
+ Ntilde="N",ntilde="n",
+ Adiaeresis="A",adiaeresis="a",Adieresis="A",adieresis="a",
+ Ediaeresis="E",ediaeresis="e",Edieresis="E",edieresis="e",
+ Idiaeresis="I",idiaeresis="i",Idieresis="I",idieresis="i",
+ Odiaeresis="O",odiaeresis="o",Odieresis="O",odieresis="o",
+ Udiaeresis="U",udiaeresis="u",Udieresis="U",udieresis="u",
+ Ydiaeresis="Y",ydiaeresis="y",Ydieresis="Y",ydieresis="y",
+ Aacute="A",aacute="a",
+ Cacute="C",cacute="c",
+ Eacute="E",eacute="e",
+ Iacute="I",iacute="i",
+ Lacute="L",lacute="l",
+ Nacute="N",nacute="n",
+ Oacute="O",oacute="o",
+ Racute="R",racute="r",
+ Sacute="S",sacute="s",
+ Uacute="U",uacute="u",
+ Yacute="Y",yacute="y",
+ Zacute="Z",zacute="z",
+ Dstroke="D",dstroke="d",
+ Hstroke="H",hstroke="h",
+ Tstroke="T",tstroke="t",
+ Cdotaccent="C",cdotaccent="c",
+ Edotaccent="E",edotaccent="e",
+ Gdotaccent="G",gdotaccent="g",
+ Idotaccent="I",idotaccent="i",
+ Zdotaccent="Z",zdotaccent="z",
+ Amacron="A",amacron="a",
+ Emacron="E",emacron="e",
+ Imacron="I",imacron="i",
+ Omacron="O",omacron="o",
+ Umacron="U",umacron="u",
+ Ccedilla="C",ccedilla="c",
+ Kcedilla="K",kcedilla="k",
+ Lcedilla="L",lcedilla="l",
+ Ncedilla="N",ncedilla="n",
+ Rcedilla="R",rcedilla="r",
+ Scedilla="S",scedilla="s",
+ Tcedilla="T",tcedilla="t",
+ Ohungarumlaut="O",ohungarumlaut="o",
+ Uhungarumlaut="U",uhungarumlaut="u",
+ Aogonek="A",aogonek="a",
+ Eogonek="E",eogonek="e",
+ Iogonek="I",iogonek="i",
+ Uogonek="U",uogonek="u",
+ Aring="A",aring="a",
+ Uring="U",uring="u",
+ Abreve="A",abreve="a",
+ Ebreve="E",ebreve="e",
+ Gbreve="G",gbreve="g",
+ Ibreve="I",ibreve="i",
+ Obreve="O",obreve="o",
+ Ubreve="U",ubreve="u",
+ Ccaron="C",ccaron="c",
+ Dcaron="D",dcaron="d",
+ Ecaron="E",ecaron="e",
+ Lcaron="L",lcaron="l",
+ Ncaron="N",ncaron="n",
+ Rcaron="R",rcaron="r",
+ Scaron="S",scaron="s",
+ Tcaron="T",tcaron="t",
+ Zcaron="Z",zcaron="z",
+ dotlessI="I",dotlessi="i",
+ dotlessJ="J",dotlessj="j",
+ AEligature="AE",aeligature="ae",AE="AE",ae="ae",
+ OEligature="OE",oeligature="oe",OE="OE",oe="oe",
+ IJligature="IJ",ijligature="ij",IJ="IJ",ij="ij",
+ Lstroke="L",lstroke="l",Lslash="L",lslash="l",
+ Ostroke="O",ostroke="o",Oslash="O",oslash="o",
+ Ssharp="SS",ssharp="ss",
+ Aumlaut="A",aumlaut="a",
+ Eumlaut="E",eumlaut="e",
+ Iumlaut="I",iumlaut="i",
+ Oumlaut="O",oumlaut="o",
+ Uumlaut="U",uumlaut="u",
+ }
+}
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['luatex-fonts-tfm']={
+ version=1.001,
+ comment="companion to luatex-*.tex",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+if context then
+ texio.write_nl("fatal error: this module is not for context")
+ os.exit()
+end
+local fonts=fonts
+local tfm={}
+fonts.handlers.tfm=tfm
+fonts.formats.tfm="type1"
+function fonts.readers.tfm(specification)
+ local fullname=specification.filename or ""
+ if fullname=="" then
+ local forced=specification.forced or ""
+ if forced~="" then
+ fullname=specification.name.."."..forced
+ else
+ fullname=specification.name
+ end
+ end
+ local foundname=resolvers.findbinfile(fullname,'tfm') or ""
+ if foundname=="" then
+ foundname=resolvers.findbinfile(fullname,'ofm') or ""
+ end
+ if foundname~="" then
+ specification.filename=foundname
+ specification.format="ofm"
+ return font.read_tfm(specification.filename,specification.size)
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-oti']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local lower=string.lower
+local fonts=fonts
+local constructors=fonts.constructors
+local otf=constructors.newhandler("otf")
+local otffeatures=constructors.newfeatures("otf")
+local otftables=otf.tables
+local registerotffeature=otffeatures.register
+local allocate=utilities.storage.allocate
+registerotffeature {
+ name="features",
+ description="initialization of feature handler",
+ default=true,
+}
+local function setmode(tfmdata,value)
+ if value then
+ tfmdata.properties.mode=lower(value)
+ end
+end
+local function setlanguage(tfmdata,value)
+ if value then
+ local cleanvalue=lower(value)
+ local languages=otftables and otftables.languages
+ local properties=tfmdata.properties
+ if not languages then
+ properties.language=cleanvalue
+ elseif languages[value] then
+ properties.language=cleanvalue
+ else
+ properties.language="dflt"
+ end
+ end
+end
+local function setscript(tfmdata,value)
+ if value then
+ local cleanvalue=lower(value)
+ local scripts=otftables and otftables.scripts
+ local properties=tfmdata.properties
+ if not scripts then
+ properties.script=cleanvalue
+ elseif scripts[value] then
+ properties.script=cleanvalue
+ else
+ properties.script="dflt"
+ end
+ end
+end
+registerotffeature {
+ name="mode",
+ description="mode",
+ initializers={
+ base=setmode,
+ node=setmode,
+ }
+}
+registerotffeature {
+ name="language",
+ description="language",
+ initializers={
+ base=setlanguage,
+ node=setlanguage,
+ }
+}
+registerotffeature {
+ name="script",
+ description="script",
+ initializers={
+ base=setscript,
+ node=setscript,
+ }
+}
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-otf']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local utfbyte=utf.byte
+local format,gmatch,gsub,find,match,lower,strip=string.format,string.gmatch,string.gsub,string.find,string.match,string.lower,string.strip
+local type,next,tonumber,tostring=type,next,tonumber,tostring
+local abs=math.abs
+local insert=table.insert
+local lpegmatch=lpeg.match
+local reversed,concat,remove,sortedkeys=table.reversed,table.concat,table.remove,table.sortedkeys
+local ioflush=io.flush
+local fastcopy,tohash,derivetable=table.fastcopy,table.tohash,table.derive
+local formatters=string.formatters
+local allocate=utilities.storage.allocate
+local registertracker=trackers.register
+local registerdirective=directives.register
+local starttiming=statistics.starttiming
+local stoptiming=statistics.stoptiming
+local elapsedtime=statistics.elapsedtime
+local findbinfile=resolvers.findbinfile
+local trace_private=false registertracker("otf.private",function(v) trace_private=v end)
+local trace_loading=false registertracker("otf.loading",function(v) trace_loading=v end)
+local trace_features=false registertracker("otf.features",function(v) trace_features=v end)
+local trace_dynamics=false registertracker("otf.dynamics",function(v) trace_dynamics=v end)
+local trace_sequences=false registertracker("otf.sequences",function(v) trace_sequences=v end)
+local trace_markwidth=false registertracker("otf.markwidth",function(v) trace_markwidth=v end)
+local trace_defining=false registertracker("fonts.defining",function(v) trace_defining=v end)
+local report_otf=logs.reporter("fonts","otf loading")
+local fonts=fonts
+local otf=fonts.handlers.otf
+otf.glists={ "gsub","gpos" }
+otf.version=2.759
+otf.cache=containers.define("fonts","otf",otf.version,true)
+local fontdata=fonts.hashes.identifiers
+local chardata=characters and characters.data
+local otffeatures=fonts.constructors.newfeatures("otf")
+local registerotffeature=otffeatures.register
+local enhancers=allocate()
+otf.enhancers=enhancers
+local patches={}
+enhancers.patches=patches
+local definers=fonts.definers
+local readers=fonts.readers
+local constructors=fonts.constructors
+local forceload=false
+local cleanup=0
+local usemetatables=false
+local packdata=true
+local syncspace=true
+local forcenotdef=false
+local includesubfonts=false
+local overloadkerns=false
+local applyruntimefixes=fonts.treatments and fonts.treatments.applyfixes
+local wildcard="*"
+local default="dflt"
+local fontloaderfields=fontloader.fields
+local mainfields=nil
+local glyphfields=nil
+local formats=fonts.formats
+formats.otf="opentype"
+formats.ttf="truetype"
+formats.ttc="truetype"
+formats.dfont="truetype"
+registerdirective("fonts.otf.loader.cleanup",function(v) cleanup=tonumber(v) or (v and 1) or 0 end)
+registerdirective("fonts.otf.loader.force",function(v) forceload=v end)
+registerdirective("fonts.otf.loader.usemetatables",function(v) usemetatables=v end)
+registerdirective("fonts.otf.loader.pack",function(v) packdata=v end)
+registerdirective("fonts.otf.loader.syncspace",function(v) syncspace=v end)
+registerdirective("fonts.otf.loader.forcenotdef",function(v) forcenotdef=v end)
+registerdirective("fonts.otf.loader.overloadkerns",function(v) overloadkerns=v end)
+function otf.fileformat(filename)
+ local leader=lower(io.loadchunk(filename,4))
+ local suffix=lower(file.suffix(filename))
+ if leader=="otto" then
+ return formats.otf,suffix=="otf"
+ elseif leader=="ttcf" then
+ return formats.ttc,suffix=="ttc"
+ elseif suffix=="ttc" then
+ return formats.ttc,true
+ elseif suffix=="dfont" then
+ return formats.dfont,true
+ else
+ return formats.ttf,suffix=="ttf"
+ end
+end
+local function otf_format(filename)
+ local format,okay=otf.fileformat(filename)
+ if not okay then
+ report_otf("font %a is actually an %a file",filename,format)
+ end
+ return format
+end
+local function load_featurefile(raw,featurefile)
+ if featurefile and featurefile~="" then
+ if trace_loading then
+ report_otf("using featurefile %a",featurefile)
+ end
+ fontloader.apply_featurefile(raw,featurefile)
+ end
+end
+local function showfeatureorder(rawdata,filename)
+ local sequences=rawdata.resources.sequences
+ if sequences and #sequences>0 then
+ if trace_loading then
+ report_otf("font %a has %s sequences",filename,#sequences)
+ report_otf(" ")
+ end
+ for nos=1,#sequences do
+ local sequence=sequences[nos]
+ local typ=sequence.type or "no-type"
+ local name=sequence.name or "no-name"
+ local subtables=sequence.subtables or { "no-subtables" }
+ local features=sequence.features
+ if trace_loading then
+ report_otf("%3i %-15s %-20s [% t]",nos,name,typ,subtables)
+ end
+ if features then
+ for feature,scripts in next,features do
+ local tt={}
+ if type(scripts)=="table" then
+ for script,languages in next,scripts do
+ local ttt={}
+ for language,_ in next,languages do
+ ttt[#ttt+1]=language
+ end
+ tt[#tt+1]=formatters["[%s: % t]"](script,ttt)
+ end
+ if trace_loading then
+ report_otf(" %s: % t",feature,tt)
+ end
+ else
+ if trace_loading then
+ report_otf(" %s: %S",feature,scripts)
+ end
+ end
+ end
+ end
+ end
+ if trace_loading then
+ report_otf("\n")
+ end
+ elseif trace_loading then
+ report_otf("font %a has no sequences",filename)
+ end
+end
+local valid_fields=table.tohash {
+ "ascent",
+ "cidinfo",
+ "copyright",
+ "descent",
+ "design_range_bottom",
+ "design_range_top",
+ "design_size",
+ "encodingchanged",
+ "extrema_bound",
+ "familyname",
+ "fontname",
+ "fontname",
+ "fontstyle_id",
+ "fontstyle_name",
+ "fullname",
+ "hasvmetrics",
+ "horiz_base",
+ "issans",
+ "isserif",
+ "italicangle",
+ "macstyle",
+ "onlybitmaps",
+ "origname",
+ "os2_version",
+ "pfminfo",
+ "serifcheck",
+ "sfd_version",
+ "strokedfont",
+ "strokewidth",
+ "table_version",
+ "ttf_tables",
+ "uni_interp",
+ "uniqueid",
+ "units_per_em",
+ "upos",
+ "use_typo_metrics",
+ "uwidth",
+ "validation_state",
+ "version",
+ "vert_base",
+ "weight",
+ "weight_width_slope_only",
+}
+local ordered_enhancers={
+ "prepare tables",
+ "prepare glyphs",
+ "prepare lookups",
+ "analyze glyphs",
+ "analyze math",
+ "prepare tounicode",
+ "reorganize lookups",
+ "reorganize mark classes",
+ "reorganize anchor classes",
+ "reorganize glyph kerns",
+ "reorganize glyph lookups",
+ "reorganize glyph anchors",
+ "merge kern classes",
+ "reorganize features",
+ "reorganize subtables",
+ "check glyphs",
+ "check metadata",
+ "check extra features",
+ "check encoding",
+ "add duplicates",
+ "cleanup tables",
+}
+local actions=allocate()
+local before=allocate()
+local after=allocate()
+patches.before=before
+patches.after=after
+local function enhance(name,data,filename,raw)
+ local enhancer=actions[name]
+ if enhancer then
+ if trace_loading then
+ report_otf("apply enhancement %a to file %a",name,filename)
+ ioflush()
+ end
+ enhancer(data,filename,raw)
+ else
+ end
+end
+function enhancers.apply(data,filename,raw)
+ local basename=file.basename(lower(filename))
+ if trace_loading then
+ report_otf("%s enhancing file %a","start",filename)
+ end
+ ioflush()
+ for e=1,#ordered_enhancers do
+ local enhancer=ordered_enhancers[e]
+ local b=before[enhancer]
+ if b then
+ for pattern,action in next,b do
+ if find(basename,pattern) then
+ action(data,filename,raw)
+ end
+ end
+ end
+ enhance(enhancer,data,filename,raw)
+ local a=after[enhancer]
+ if a then
+ for pattern,action in next,a do
+ if find(basename,pattern) then
+ action(data,filename,raw)
+ end
+ end
+ end
+ ioflush()
+ end
+ if trace_loading then
+ report_otf("%s enhancing file %a","stop",filename)
+ end
+ ioflush()
+end
+function patches.register(what,where,pattern,action)
+ local pw=patches[what]
+ if pw then
+ local ww=pw[where]
+ if ww then
+ ww[pattern]=action
+ else
+ pw[where]={ [pattern]=action}
+ end
+ end
+end
+function patches.report(fmt,...)
+ if trace_loading then
+ report_otf("patching: %s",formatters[fmt](...))
+ end
+end
+function enhancers.register(what,action)
+ actions[what]=action
+end
+function otf.load(filename,sub,featurefile)
+ local base=file.basename(file.removesuffix(filename))
+ local name=file.removesuffix(base)
+ local attr=lfs.attributes(filename)
+ local size=attr and attr.size or 0
+ local time=attr and attr.modification or 0
+ if featurefile then
+ name=name.."@"..file.removesuffix(file.basename(featurefile))
+ end
+ if sub=="" then
+ sub=false
+ end
+ local hash=name
+ if sub then
+ hash=hash.."-"..sub
+ end
+ hash=containers.cleanname(hash)
+ local featurefiles
+ if featurefile then
+ featurefiles={}
+ for s in gmatch(featurefile,"[^,]+") do
+ local name=resolvers.findfile(file.addsuffix(s,'fea'),'fea') or ""
+ if name=="" then
+ report_otf("loading error, no featurefile %a",s)
+ else
+ local attr=lfs.attributes(name)
+ featurefiles[#featurefiles+1]={
+ name=name,
+ size=attr and attr.size or 0,
+ time=attr and attr.modification or 0,
+ }
+ end
+ end
+ if #featurefiles==0 then
+ featurefiles=nil
+ end
+ end
+ local data=containers.read(otf.cache,hash)
+ local reload=not data or data.size~=size or data.time~=time
+ if forceload then
+ report_otf("forced reload of %a due to hard coded flag",filename)
+ reload=true
+ end
+ if not reload then
+ local featuredata=data.featuredata
+ if featurefiles then
+ if not featuredata or #featuredata~=#featurefiles then
+ reload=true
+ else
+ for i=1,#featurefiles do
+ local fi,fd=featurefiles[i],featuredata[i]
+ if fi.name~=fd.name or fi.size~=fd.size or fi.time~=fd.time then
+ reload=true
+ break
+ end
+ end
+ end
+ elseif featuredata then
+ reload=true
+ end
+ if reload then
+ report_otf("loading: forced reload due to changed featurefile specification %a",featurefile)
+ end
+ end
+ if reload then
+ report_otf("loading %a, hash %a",filename,hash)
+ local fontdata,messages
+ if sub then
+ fontdata,messages=fontloader.open(filename,sub)
+ else
+ fontdata,messages=fontloader.open(filename)
+ end
+ if fontdata then
+ mainfields=mainfields or (fontloaderfields and fontloaderfields(fontdata))
+ end
+ if trace_loading and messages and #messages>0 then
+ if type(messages)=="string" then
+ report_otf("warning: %s",messages)
+ else
+ for m=1,#messages do
+ report_otf("warning: %S",messages[m])
+ end
+ end
+ else
+ report_otf("loading done")
+ end
+ if fontdata then
+ if featurefiles then
+ for i=1,#featurefiles do
+ load_featurefile(fontdata,featurefiles[i].name)
+ end
+ end
+ local unicodes={
+ }
+ local splitter=lpeg.splitter(" ",unicodes)
+ data={
+ size=size,
+ time=time,
+ format=otf_format(filename),
+ featuredata=featurefiles,
+ resources={
+ filename=resolvers.unresolve(filename),
+ version=otf.version,
+ creator="context mkiv",
+ unicodes=unicodes,
+ indices={
+ },
+ duplicates={
+ },
+ variants={
+ },
+ lookuptypes={},
+ },
+ metadata={
+ },
+ properties={
+ },
+ descriptions={},
+ goodies={},
+ helpers={
+ tounicodelist=splitter,
+ tounicodetable=lpeg.Ct(splitter),
+ },
+ }
+ starttiming(data)
+ report_otf("file size: %s",size)
+ enhancers.apply(data,filename,fontdata)
+ local packtime={}
+ if packdata then
+ if cleanup>0 then
+ collectgarbage("collect")
+ end
+ starttiming(packtime)
+ enhance("pack",data,filename,nil)
+ stoptiming(packtime)
+ end
+ report_otf("saving %a in cache",filename)
+ data=containers.write(otf.cache,hash,data)
+ if cleanup>1 then
+ collectgarbage("collect")
+ end
+ stoptiming(data)
+ if elapsedtime then
+ report_otf("preprocessing and caching time %s, packtime %s",
+ elapsedtime(data),packdata and elapsedtime(packtime) or 0)
+ end
+ fontloader.close(fontdata)
+ if cleanup>3 then
+ collectgarbage("collect")
+ end
+ data=containers.read(otf.cache,hash)
+ if cleanup>2 then
+ collectgarbage("collect")
+ end
+ else
+ data=nil
+ report_otf("loading failed due to read error")
+ end
+ end
+ if data then
+ if trace_defining then
+ report_otf("loading from cache using hash %a",hash)
+ end
+ enhance("unpack",data,filename,nil,false)
+ if applyruntimefixes then
+ applyruntimefixes(filename,data)
+ end
+ enhance("add dimensions",data,filename,nil,false)
+ if trace_sequences then
+ showfeatureorder(data,filename)
+ end
+ end
+ return data
+end
+local mt={
+ __index=function(t,k)
+ if k=="height" then
+ local ht=t.boundingbox[4]
+ return ht<0 and 0 or ht
+ elseif k=="depth" then
+ local dp=-t.boundingbox[2]
+ return dp<0 and 0 or dp
+ elseif k=="width" then
+ return 0
+ elseif k=="name" then
+ return forcenotdef and ".notdef"
+ end
+ end
+}
+actions["prepare tables"]=function(data,filename,raw)
+ data.properties.hasitalics=false
+end
+actions["add dimensions"]=function(data,filename)
+ if data then
+ local descriptions=data.descriptions
+ local resources=data.resources
+ local defaultwidth=resources.defaultwidth or 0
+ local defaultheight=resources.defaultheight or 0
+ local defaultdepth=resources.defaultdepth or 0
+ local basename=trace_markwidth and file.basename(filename)
+ if usemetatables then
+ for _,d in next,descriptions do
+ local wd=d.width
+ if not wd then
+ d.width=defaultwidth
+ elseif trace_markwidth and wd~=0 and d.class=="mark" then
+ report_otf("mark %a with width %b found in %a",d.name or "<noname>",wd,basename)
+ end
+ setmetatable(d,mt)
+ end
+ else
+ for _,d in next,descriptions do
+ local bb,wd=d.boundingbox,d.width
+ if not wd then
+ d.width=defaultwidth
+ elseif trace_markwidth and wd~=0 and d.class=="mark" then
+ report_otf("mark %a with width %b found in %a",d.name or "<noname>",wd,basename)
+ end
+ if bb then
+ local ht,dp=bb[4],-bb[2]
+ if ht==0 or ht<0 then
+ else
+ d.height=ht
+ end
+ if dp==0 or dp<0 then
+ else
+ d.depth=dp
+ end
+ end
+ end
+ end
+ end
+end
+local function somecopy(old)
+ if old then
+ local new={}
+ if type(old)=="table" then
+ for k,v in next,old do
+ if k=="glyphs" then
+ elseif type(v)=="table" then
+ new[k]=somecopy(v)
+ else
+ new[k]=v
+ end
+ end
+ else
+ for i=1,#mainfields do
+ local k=mainfields[i]
+ local v=old[k]
+ if k=="glyphs" then
+ elseif type(v)=="table" then
+ new[k]=somecopy(v)
+ else
+ new[k]=v
+ end
+ end
+ end
+ return new
+ else
+ return {}
+ end
+end
+actions["prepare glyphs"]=function(data,filename,raw)
+ local rawglyphs=raw.glyphs
+ local rawsubfonts=raw.subfonts
+ local rawcidinfo=raw.cidinfo
+ local criterium=constructors.privateoffset
+ local private=criterium
+ local resources=data.resources
+ local metadata=data.metadata
+ local properties=data.properties
+ local descriptions=data.descriptions
+ local unicodes=resources.unicodes
+ local indices=resources.indices
+ local duplicates=resources.duplicates
+ local variants=resources.variants
+ if rawsubfonts then
+ metadata.subfonts=includesubfonts and {}
+ properties.cidinfo=rawcidinfo
+ if rawcidinfo.registry then
+ local cidmap=fonts.cid.getmap(rawcidinfo)
+ if cidmap then
+ rawcidinfo.usedname=cidmap.usedname
+ local nofnames,nofunicodes=0,0
+ local cidunicodes,cidnames=cidmap.unicodes,cidmap.names
+ for cidindex=1,#rawsubfonts do
+ local subfont=rawsubfonts[cidindex]
+ local cidglyphs=subfont.glyphs
+ if includesubfonts then
+ metadata.subfonts[cidindex]=somecopy(subfont)
+ end
+ for index=0,subfont.glyphcnt-1 do
+ local glyph=cidglyphs[index]
+ if glyph then
+ local unicode=glyph.unicode
+if unicode>=0x00E000 and unicode<=0x00F8FF then
+ unicode=-1
+elseif unicode>=0x0F0000 and unicode<=0x0FFFFD then
+ unicode=-1
+elseif unicode>=0x100000 and unicode<=0x10FFFD then
+ unicode=-1
+end
+ local name=glyph.name or cidnames[index]
+ if not unicode or unicode==-1 then
+ unicode=cidunicodes[index]
+ end
+ if unicode and descriptions[unicode] then
+ if trace_private then
+ report_otf("preventing glyph %a at index %H to overload unicode %U",name or "noname",index,unicode)
+ end
+ unicode=-1
+ end
+ if not unicode or unicode==-1 then
+ if not name then
+ name=format("u%06X.ctx",private)
+ end
+ unicode=private
+ unicodes[name]=private
+ if trace_private then
+ report_otf("glyph %a at index %H is moved to private unicode slot %U",name,index,private)
+ end
+ private=private+1
+ nofnames=nofnames+1
+ else
+ if not name then
+ name=format("u%06X.ctx",unicode)
+ end
+ unicodes[name]=unicode
+ nofunicodes=nofunicodes+1
+ end
+ indices[index]=unicode
+ local description={
+ boundingbox=glyph.boundingbox,
+ name=glyph.name or name or "unknown",
+ cidindex=cidindex,
+ index=index,
+ glyph=glyph,
+ }
+ descriptions[unicode]=description
+ else
+ end
+ end
+ end
+ if trace_loading then
+ report_otf("cid font remapped, %s unicode points, %s symbolic names, %s glyphs",nofunicodes,nofnames,nofunicodes+nofnames)
+ end
+ elseif trace_loading then
+ report_otf("unable to remap cid font, missing cid file for %a",filename)
+ end
+ elseif trace_loading then
+ report_otf("font %a has no glyphs",filename)
+ end
+ else
+ for index=0,raw.glyphcnt-1 do
+ local glyph=rawglyphs[index]
+ if glyph then
+ local unicode=glyph.unicode
+ local name=glyph.name
+ if not unicode or unicode==-1 then
+ unicode=private
+ unicodes[name]=private
+ if trace_private then
+ report_otf("glyph %a at index %H is moved to private unicode slot %U",name,index,private)
+ end
+ private=private+1
+ else
+ if unicode>criterium then
+ local taken=descriptions[unicode]
+ if taken then
+ if unicode>=private then
+ private=unicode+1
+ else
+ private=private+1
+ end
+ descriptions[private]=taken
+ unicodes[taken.name]=private
+ indices[taken.index]=private
+ if trace_private then
+ report_otf("slot %U is moved to %U due to private in font",unicode)
+ end
+ else
+ if unicode>=private then
+ private=unicode+1
+ end
+ end
+ end
+ unicodes[name]=unicode
+ end
+ indices[index]=unicode
+ descriptions[unicode]={
+ boundingbox=glyph.boundingbox,
+ name=name,
+ index=index,
+ glyph=glyph,
+ }
+ local altuni=glyph.altuni
+ if altuni then
+ for i=1,#altuni do
+ local a=altuni[i]
+ local u=a.unicode
+ local v=a.variant
+ if v then
+ local vv=variants[v]
+ if vv then
+ vv[u]=unicode
+ else
+ vv={ [u]=unicode }
+ variants[v]=vv
+ end
+ end
+ end
+ end
+ else
+ report_otf("potential problem: glyph %U is used but empty",index)
+ end
+ end
+ end
+ resources.private=private
+end
+actions["check encoding"]=function(data,filename,raw)
+ local descriptions=data.descriptions
+ local resources=data.resources
+ local properties=data.properties
+ local unicodes=resources.unicodes
+ local indices=resources.indices
+ local duplicates=resources.duplicates
+ local mapdata=raw.map or {}
+ local unicodetoindex=mapdata and mapdata.map or {}
+ local indextounicode=mapdata and mapdata.backmap or {}
+ local encname=lower(data.enc_name or mapdata.enc_name or "")
+ local criterium=0xFFFF
+ local privateoffset=constructors.privateoffset
+ if find(encname,"unicode") then
+ if trace_loading then
+ report_otf("checking embedded unicode map %a",encname)
+ end
+ local reported={}
+ for maybeunicode,index in next,unicodetoindex do
+ if descriptions[maybeunicode] then
+ else
+ local unicode=indices[index]
+ if not unicode then
+ elseif maybeunicode==unicode then
+ elseif unicode>privateoffset then
+ else
+ local d=descriptions[unicode]
+ if d then
+ local c=d.copies
+ if c then
+ c[maybeunicode]=true
+ else
+ d.copies={ [maybeunicode]=true }
+ end
+ elseif index and not reported[index] then
+ report_otf("missing index %i",index)
+ reported[index]=true
+ end
+ end
+ end
+ end
+ for unicode,data in next,descriptions do
+ local d=data.copies
+ if d then
+ duplicates[unicode]=sortedkeys(d)
+ data.copies=nil
+ end
+ end
+ elseif properties.cidinfo then
+ report_otf("warning: no unicode map, used cidmap %a",properties.cidinfo.usedname)
+ else
+ report_otf("warning: non unicode map %a, only using glyph unicode data",encname or "whatever")
+ end
+ if mapdata then
+ mapdata.map={}
+ mapdata.backmap={}
+ end
+end
+actions["add duplicates"]=function(data,filename,raw)
+ local descriptions=data.descriptions
+ local resources=data.resources
+ local properties=data.properties
+ local unicodes=resources.unicodes
+ local indices=resources.indices
+ local duplicates=resources.duplicates
+ for unicode,d in next,duplicates do
+ local nofduplicates=#d
+ if nofduplicates>4 then
+ if trace_loading then
+ report_otf("ignoring excessive duplicates of %U (n=%s)",unicode,nofduplicates)
+ end
+ else
+ for i=1,nofduplicates do
+ local u=d[i]
+ if not descriptions[u] then
+ local description=descriptions[unicode]
+ local n=0
+ for _,description in next,descriptions do
+ if kerns then
+ local kerns=description.kerns
+ for _,k in next,kerns do
+ local ku=k[unicode]
+ if ku then
+ k[u]=ku
+ n=n+1
+ end
+ end
+ end
+ end
+ if u>0 then
+ local duplicate=table.copy(description)
+ duplicate.comment=format("copy of U+%05X",unicode)
+ descriptions[u]=duplicate
+ if trace_loading then
+ report_otf("duplicating %U to %U with index %H (%s kerns)",unicode,u,description.index,n)
+ end
+ end
+ end
+ end
+ end
+ end
+end
+actions["analyze glyphs"]=function(data,filename,raw)
+ local descriptions=data.descriptions
+ local resources=data.resources
+ local metadata=data.metadata
+ local properties=data.properties
+ local hasitalics=false
+ local widths={}
+ local marks={}
+ for unicode,description in next,descriptions do
+ local glyph=description.glyph
+ local italic=glyph.italic_correction
+ if not italic then
+ elseif italic==0 then
+ else
+ description.italic=italic
+ hasitalics=true
+ end
+ local width=glyph.width
+ widths[width]=(widths[width] or 0)+1
+ local class=glyph.class
+ if class then
+ if class=="mark" then
+ marks[unicode]=true
+ end
+ description.class=class
+ end
+ end
+ properties.hasitalics=hasitalics
+ resources.marks=marks
+ local wd,most=0,1
+ for k,v in next,widths do
+ if v>most then
+ wd,most=k,v
+ end
+ end
+ if most>1000 then
+ if trace_loading then
+ report_otf("most common width: %s (%s times), sharing (cjk font)",wd,most)
+ end
+ for unicode,description in next,descriptions do
+ if description.width==wd then
+ else
+ description.width=description.glyph.width
+ end
+ end
+ resources.defaultwidth=wd
+ else
+ for unicode,description in next,descriptions do
+ description.width=description.glyph.width
+ end
+ end
+end
+actions["reorganize mark classes"]=function(data,filename,raw)
+ local mark_classes=raw.mark_classes
+ if mark_classes then
+ local resources=data.resources
+ local unicodes=resources.unicodes
+ local markclasses={}
+ resources.markclasses=markclasses
+ for name,class in next,mark_classes do
+ local t={}
+ for s in gmatch(class,"[^ ]+") do
+ t[unicodes[s]]=true
+ end
+ markclasses[name]=t
+ end
+ end
+end
+actions["reorganize features"]=function(data,filename,raw)
+ local features={}
+ data.resources.features=features
+ for k,what in next,otf.glists do
+ local dw=raw[what]
+ if dw then
+ local f={}
+ features[what]=f
+ for i=1,#dw do
+ local d=dw[i]
+ local dfeatures=d.features
+ if dfeatures then
+ for i=1,#dfeatures do
+ local df=dfeatures[i]
+ local tag=strip(lower(df.tag))
+ local ft=f[tag]
+ if not ft then
+ ft={}
+ f[tag]=ft
+ end
+ local dscripts=df.scripts
+ for i=1,#dscripts do
+ local d=dscripts[i]
+ local languages=d.langs
+ local script=strip(lower(d.script))
+ local fts=ft[script] if not fts then fts={} ft[script]=fts end
+ for i=1,#languages do
+ fts[strip(lower(languages[i]))]=true
+ end
+ end
+ end
+ end
+ end
+ end
+ end
+end
+actions["reorganize anchor classes"]=function(data,filename,raw)
+ local resources=data.resources
+ local anchor_to_lookup={}
+ local lookup_to_anchor={}
+ resources.anchor_to_lookup=anchor_to_lookup
+ resources.lookup_to_anchor=lookup_to_anchor
+ local classes=raw.anchor_classes
+ if classes then
+ for c=1,#classes do
+ local class=classes[c]
+ local anchor=class.name
+ local lookups=class.lookup
+ if type(lookups)~="table" then
+ lookups={ lookups }
+ end
+ local a=anchor_to_lookup[anchor]
+ if not a then
+ a={}
+ anchor_to_lookup[anchor]=a
+ end
+ for l=1,#lookups do
+ local lookup=lookups[l]
+ local l=lookup_to_anchor[lookup]
+ if l then
+ l[anchor]=true
+ else
+ l={ [anchor]=true }
+ lookup_to_anchor[lookup]=l
+ end
+ a[lookup]=true
+ end
+ end
+ end
+end
+actions["prepare tounicode"]=function(data,filename,raw)
+ fonts.mappings.addtounicode(data,filename)
+end
+local g_directions={
+ gsub_contextchain=1,
+ gpos_contextchain=1,
+ gsub_reversecontextchain=-1,
+ gpos_reversecontextchain=-1,
+}
+actions["reorganize subtables"]=function(data,filename,raw)
+ local resources=data.resources
+ local sequences={}
+ local lookups={}
+ local chainedfeatures={}
+ resources.sequences=sequences
+ resources.lookups=lookups
+ for _,what in next,otf.glists do
+ local dw=raw[what]
+ if dw then
+ for k=1,#dw do
+ local gk=dw[k]
+ local features=gk.features
+ local typ=gk.type
+ local chain=g_directions[typ] or 0
+ local subtables=gk.subtables
+ if subtables then
+ local t={}
+ for s=1,#subtables do
+ t[s]=subtables[s].name
+ end
+ subtables=t
+ end
+ local flags,markclass=gk.flags,nil
+ if flags then
+ local t={
+ (flags.ignorecombiningmarks and "mark") or false,
+ (flags.ignoreligatures and "ligature") or false,
+ (flags.ignorebaseglyphs and "base") or false,
+ flags.r2l or false,
+ }
+ markclass=flags.mark_class
+ if markclass then
+ markclass=resources.markclasses[markclass]
+ end
+ flags=t
+ end
+ local name=gk.name
+ if not name then
+ report_otf("skipping weird lookup number %s",k)
+ elseif features then
+ local f={}
+ local o={}
+ for i=1,#features do
+ local df=features[i]
+ local tag=strip(lower(df.tag))
+ local ft=f[tag]
+ if not ft then
+ ft={}
+ f[tag]=ft
+ o[#o+1]=tag
+ end
+ local dscripts=df.scripts
+ for i=1,#dscripts do
+ local d=dscripts[i]
+ local languages=d.langs
+ local script=strip(lower(d.script))
+ local fts=ft[script] if not fts then fts={} ft[script]=fts end
+ for i=1,#languages do
+ fts[strip(lower(languages[i]))]=true
+ end
+ end
+ end
+ sequences[#sequences+1]={
+ type=typ,
+ chain=chain,
+ flags=flags,
+ name=name,
+ subtables=subtables,
+ markclass=markclass,
+ features=f,
+ order=o,
+ }
+ else
+ lookups[name]={
+ type=typ,
+ chain=chain,
+ flags=flags,
+ subtables=subtables,
+ markclass=markclass,
+ }
+ end
+ end
+ end
+ end
+end
+actions["prepare lookups"]=function(data,filename,raw)
+ local lookups=raw.lookups
+ if lookups then
+ data.lookups=lookups
+ end
+end
+local function t_uncover(splitter,cache,covers)
+ local result={}
+ for n=1,#covers do
+ local cover=covers[n]
+ local uncovered=cache[cover]
+ if not uncovered then
+ uncovered=lpegmatch(splitter,cover)
+ cache[cover]=uncovered
+ end
+ result[n]=uncovered
+ end
+ return result
+end
+local function s_uncover(splitter,cache,cover)
+ if cover=="" then
+ return nil
+ else
+ local uncovered=cache[cover]
+ if not uncovered then
+ uncovered=lpegmatch(splitter,cover)
+ cache[cover]=uncovered
+ end
+ return { uncovered }
+ end
+end
+local function t_hashed(t,cache)
+ if t then
+ local ht={}
+ for i=1,#t do
+ local ti=t[i]
+ local tih=cache[ti]
+ if not tih then
+ tih={}
+ for i=1,#ti do
+ tih[ti[i]]=true
+ end
+ cache[ti]=tih
+ end
+ ht[i]=tih
+ end
+ return ht
+ else
+ return nil
+ end
+end
+local function s_hashed(t,cache)
+ if t then
+ local ht={}
+ local tf=t[1]
+ for i=1,#tf do
+ ht[i]={ [tf[i]]=true }
+ end
+ return ht
+ else
+ return nil
+ end
+end
+local function r_uncover(splitter,cache,cover,replacements)
+ if cover=="" then
+ return nil
+ else
+ local uncovered=cover[1]
+ local replaced=cache[replacements]
+ if not replaced then
+ replaced=lpegmatch(splitter,replacements)
+ cache[replacements]=replaced
+ end
+ local nu,nr=#uncovered,#replaced
+ local r={}
+ if nu==nr then
+ for i=1,nu do
+ r[uncovered[i]]=replaced[i]
+ end
+ end
+ return r
+ end
+end
+actions["reorganize lookups"]=function(data,filename,raw)
+ if data.lookups then
+ local splitter=data.helpers.tounicodetable
+ local t_u_cache={}
+ local s_u_cache=t_u_cache
+ local t_h_cache={}
+ local s_h_cache=t_h_cache
+ local r_u_cache={}
+ for _,lookup in next,data.lookups do
+ local rules=lookup.rules
+ if rules then
+ local format=lookup.format
+ if format=="class" then
+ local before_class=lookup.before_class
+ if before_class then
+ before_class=t_uncover(splitter,t_u_cache,reversed(before_class))
+ end
+ local current_class=lookup.current_class
+ if current_class then
+ current_class=t_uncover(splitter,t_u_cache,current_class)
+ end
+ local after_class=lookup.after_class
+ if after_class then
+ after_class=t_uncover(splitter,t_u_cache,after_class)
+ end
+ for i=1,#rules do
+ local rule=rules[i]
+ local class=rule.class
+ local before=class.before
+ if before then
+ for i=1,#before do
+ before[i]=before_class[before[i]] or {}
+ end
+ rule.before=t_hashed(before,t_h_cache)
+ end
+ local current=class.current
+ local lookups=rule.lookups
+ if current then
+ for i=1,#current do
+ current[i]=current_class[current[i]] or {}
+ if lookups and not lookups[i] then
+ lookups[i]=""
+ end
+ end
+ rule.current=t_hashed(current,t_h_cache)
+ end
+ local after=class.after
+ if after then
+ for i=1,#after do
+ after[i]=after_class[after[i]] or {}
+ end
+ rule.after=t_hashed(after,t_h_cache)
+ end
+ rule.class=nil
+ end
+ lookup.before_class=nil
+ lookup.current_class=nil
+ lookup.after_class=nil
+ lookup.format="coverage"
+ elseif format=="coverage" then
+ for i=1,#rules do
+ local rule=rules[i]
+ local coverage=rule.coverage
+ if coverage then
+ local before=coverage.before
+ if before then
+ before=t_uncover(splitter,t_u_cache,reversed(before))
+ rule.before=t_hashed(before,t_h_cache)
+ end
+ local current=coverage.current
+ if current then
+ current=t_uncover(splitter,t_u_cache,current)
+ local lookups=rule.lookups
+ if lookups then
+ for i=1,#current do
+ if not lookups[i] then
+ lookups[i]=""
+ end
+ end
+ end
+ rule.current=t_hashed(current,t_h_cache)
+ end
+ local after=coverage.after
+ if after then
+ after=t_uncover(splitter,t_u_cache,after)
+ rule.after=t_hashed(after,t_h_cache)
+ end
+ rule.coverage=nil
+ end
+ end
+ elseif format=="reversecoverage" then
+ for i=1,#rules do
+ local rule=rules[i]
+ local reversecoverage=rule.reversecoverage
+ if reversecoverage then
+ local before=reversecoverage.before
+ if before then
+ before=t_uncover(splitter,t_u_cache,reversed(before))
+ rule.before=t_hashed(before,t_h_cache)
+ end
+ local current=reversecoverage.current
+ if current then
+ current=t_uncover(splitter,t_u_cache,current)
+ rule.current=t_hashed(current,t_h_cache)
+ end
+ local after=reversecoverage.after
+ if after then
+ after=t_uncover(splitter,t_u_cache,after)
+ rule.after=t_hashed(after,t_h_cache)
+ end
+ local replacements=reversecoverage.replacements
+ if replacements then
+ rule.replacements=r_uncover(splitter,r_u_cache,current,replacements)
+ end
+ rule.reversecoverage=nil
+ end
+ end
+ elseif format=="glyphs" then
+ for i=1,#rules do
+ local rule=rules[i]
+ local glyphs=rule.glyphs
+ if glyphs then
+ local fore=glyphs.fore
+ if fore and fore~="" then
+ fore=s_uncover(splitter,s_u_cache,fore)
+ rule.after=s_hashed(fore,s_h_cache)
+ end
+ local back=glyphs.back
+ if back then
+ back=s_uncover(splitter,s_u_cache,back)
+ rule.before=s_hashed(back,s_h_cache)
+ end
+ local names=glyphs.names
+ if names then
+ names=s_uncover(splitter,s_u_cache,names)
+ rule.current=s_hashed(names,s_h_cache)
+ end
+ rule.glyphs=nil
+ local lookups=rule.lookups
+ if lookups then
+ for i=1,#names do
+ if not lookups[i] then
+ lookups[i]=""
+ end
+ end
+ end
+ end
+ end
+ end
+ end
+ end
+ end
+end
+local function check_variants(unicode,the_variants,splitter,unicodes)
+ local variants=the_variants.variants
+ if variants then
+ local glyphs=lpegmatch(splitter,variants)
+ local done={ [unicode]=true }
+ local n=0
+ for i=1,#glyphs do
+ local g=glyphs[i]
+ if done[g] then
+ if i>1 then
+ report_otf("skipping cyclic reference %U in math variant %U",g,unicode)
+ end
+ else
+ if n==0 then
+ n=1
+ variants={ g }
+ else
+ n=n+1
+ variants[n]=g
+ end
+ done[g]=true
+ end
+ end
+ if n==0 then
+ variants=nil
+ end
+ end
+ local parts=the_variants.parts
+ if parts then
+ local p=#parts
+ if p>0 then
+ for i=1,p do
+ local pi=parts[i]
+ pi.glyph=unicodes[pi.component] or 0
+ pi.component=nil
+ end
+ else
+ parts=nil
+ end
+ end
+ local italic_correction=the_variants.italic_correction
+ if italic_correction and italic_correction==0 then
+ italic_correction=nil
+ end
+ return variants,parts,italic_correction
+end
+actions["analyze math"]=function(data,filename,raw)
+ if raw.math then
+ data.metadata.math=raw.math
+ local unicodes=data.resources.unicodes
+ local splitter=data.helpers.tounicodetable
+ for unicode,description in next,data.descriptions do
+ local glyph=description.glyph
+ local mathkerns=glyph.mathkern
+ local horiz_variants=glyph.horiz_variants
+ local vert_variants=glyph.vert_variants
+ local top_accent=glyph.top_accent
+ if mathkerns or horiz_variants or vert_variants or top_accent then
+ local math={}
+ if top_accent then
+ math.top_accent=top_accent
+ end
+ if mathkerns then
+ for k,v in next,mathkerns do
+ if not next(v) then
+ mathkerns[k]=nil
+ else
+ for k,v in next,v do
+ if v==0 then
+ k[v]=nil
+ end
+ end
+ end
+ end
+ math.kerns=mathkerns
+ end
+ if horiz_variants then
+ math.horiz_variants,math.horiz_parts,math.horiz_italic_correction=check_variants(unicode,horiz_variants,splitter,unicodes)
+ end
+ if vert_variants then
+ math.vert_variants,math.vert_parts,math.vert_italic_correction=check_variants(unicode,vert_variants,splitter,unicodes)
+ end
+ local italic_correction=description.italic
+ if italic_correction and italic_correction~=0 then
+ math.italic_correction=italic_correction
+ end
+ description.math=math
+ end
+ end
+ end
+end
+actions["reorganize glyph kerns"]=function(data,filename,raw)
+ local descriptions=data.descriptions
+ local resources=data.resources
+ local unicodes=resources.unicodes
+ for unicode,description in next,descriptions do
+ local kerns=description.glyph.kerns
+ if kerns then
+ local newkerns={}
+ for k,kern in next,kerns do
+ local name=kern.char
+ local offset=kern.off
+ local lookup=kern.lookup
+ if name and offset and lookup then
+ local unicode=unicodes[name]
+ if unicode then
+ if type(lookup)=="table" then
+ for l=1,#lookup do
+ local lookup=lookup[l]
+ local lookupkerns=newkerns[lookup]
+ if lookupkerns then
+ lookupkerns[unicode]=offset
+ else
+ newkerns[lookup]={ [unicode]=offset }
+ end
+ end
+ else
+ local lookupkerns=newkerns[lookup]
+ if lookupkerns then
+ lookupkerns[unicode]=offset
+ else
+ newkerns[lookup]={ [unicode]=offset }
+ end
+ end
+ elseif trace_loading then
+ report_otf("problems with unicode %a of kern %a of glyph %U",name,k,unicode)
+ end
+ end
+ end
+ description.kerns=newkerns
+ end
+ end
+end
+actions["merge kern classes"]=function(data,filename,raw)
+ local gposlist=raw.gpos
+ if gposlist then
+ local descriptions=data.descriptions
+ local resources=data.resources
+ local unicodes=resources.unicodes
+ local splitter=data.helpers.tounicodetable
+ local ignored=0
+ local blocked=0
+ for gp=1,#gposlist do
+ local gpos=gposlist[gp]
+ local subtables=gpos.subtables
+ if subtables then
+ local first_done={}
+ local split={}
+ for s=1,#subtables do
+ local subtable=subtables[s]
+ local kernclass=subtable.kernclass
+ local lookup=subtable.lookup or subtable.name
+ if kernclass then
+ if #kernclass>0 then
+ kernclass=kernclass[1]
+ lookup=type(kernclass.lookup)=="string" and kernclass.lookup or lookup
+ report_otf("fixing kernclass table of lookup %a",lookup)
+ end
+ local firsts=kernclass.firsts
+ local seconds=kernclass.seconds
+ local offsets=kernclass.offsets
+ for n,s in next,firsts do
+ split[s]=split[s] or lpegmatch(splitter,s)
+ end
+ local maxseconds=0
+ for n,s in next,seconds do
+ if n>maxseconds then
+ maxseconds=n
+ end
+ split[s]=split[s] or lpegmatch(splitter,s)
+ end
+ for fk=1,#firsts do
+ local fv=firsts[fk]
+ local splt=split[fv]
+ if splt then
+ local extrakerns={}
+ local baseoffset=(fk-1)*maxseconds
+ for sk=2,maxseconds do
+ local sv=seconds[sk]
+ local splt=split[sv]
+ if splt then
+ local offset=offsets[baseoffset+sk]
+ if offset then
+ for i=1,#splt do
+ extrakerns[splt[i]]=offset
+ end
+ end
+ end
+ end
+ for i=1,#splt do
+ local first_unicode=splt[i]
+ if first_done[first_unicode] then
+ report_otf("lookup %a: ignoring further kerns of %C",lookup,first_unicode)
+ blocked=blocked+1
+ else
+ first_done[first_unicode]=true
+ local description=descriptions[first_unicode]
+ if description then
+ local kerns=description.kerns
+ if not kerns then
+ kerns={}
+ description.kerns=kerns
+ end
+ local lookupkerns=kerns[lookup]
+ if not lookupkerns then
+ lookupkerns={}
+ kerns[lookup]=lookupkerns
+ end
+ if overloadkerns then
+ for second_unicode,kern in next,extrakerns do
+ lookupkerns[second_unicode]=kern
+ end
+ else
+ for second_unicode,kern in next,extrakerns do
+ local k=lookupkerns[second_unicode]
+ if not k then
+ lookupkerns[second_unicode]=kern
+ elseif k~=kern then
+ if trace_loading then
+ report_otf("lookup %a: ignoring overload of kern between %C and %C, rejecting %a, keeping %a",lookup,first_unicode,second_unicode,k,kern)
+ end
+ ignored=ignored+1
+ end
+ end
+ end
+ elseif trace_loading then
+ report_otf("no glyph data for %U",first_unicode)
+ end
+ end
+ end
+ end
+ end
+ subtable.kernclass={}
+ end
+ end
+ end
+ end
+ if ignored>0 then
+ report_otf("%s kern overloads ignored",ignored)
+ end
+ if blocked>0 then
+ report_otf("%s succesive kerns blocked",blocked)
+ end
+ end
+end
+actions["check glyphs"]=function(data,filename,raw)
+ for unicode,description in next,data.descriptions do
+ description.glyph=nil
+ end
+end
+actions["check metadata"]=function(data,filename,raw)
+ local metadata=data.metadata
+ for _,k in next,mainfields do
+ if valid_fields[k] then
+ local v=raw[k]
+ if not metadata[k] then
+ metadata[k]=v
+ end
+ end
+ end
+ local ttftables=metadata.ttf_tables
+ if ttftables then
+ for i=1,#ttftables do
+ ttftables[i].data="deleted"
+ end
+ end
+ if metadata.validation_state and table.contains(metadata.validation_state,"bad_ps_fontname") then
+ local name=file.nameonly(filename)
+ metadata.fontname="bad-fontname-"..name
+ metadata.fullname="bad-fullname-"..name
+ end
+end
+actions["cleanup tables"]=function(data,filename,raw)
+ data.resources.indices=nil
+ data.helpers=nil
+end
+actions["reorganize glyph lookups"]=function(data,filename,raw)
+ local resources=data.resources
+ local unicodes=resources.unicodes
+ local descriptions=data.descriptions
+ local splitter=data.helpers.tounicodelist
+ local lookuptypes=resources.lookuptypes
+ for unicode,description in next,descriptions do
+ local lookups=description.glyph.lookups
+ if lookups then
+ for tag,lookuplist in next,lookups do
+ for l=1,#lookuplist do
+ local lookup=lookuplist[l]
+ local specification=lookup.specification
+ local lookuptype=lookup.type
+ local lt=lookuptypes[tag]
+ if not lt then
+ lookuptypes[tag]=lookuptype
+ elseif lt~=lookuptype then
+ report_otf("conflicting lookuptypes, %a points to %a and %a",tag,lt,lookuptype)
+ end
+ if lookuptype=="ligature" then
+ lookuplist[l]={ lpegmatch(splitter,specification.components) }
+ elseif lookuptype=="alternate" then
+ lookuplist[l]={ lpegmatch(splitter,specification.components) }
+ elseif lookuptype=="substitution" then
+ lookuplist[l]=unicodes[specification.variant]
+ elseif lookuptype=="multiple" then
+ lookuplist[l]={ lpegmatch(splitter,specification.components) }
+ elseif lookuptype=="position" then
+ lookuplist[l]={
+ specification.x or 0,
+ specification.y or 0,
+ specification.h or 0,
+ specification.v or 0
+ }
+ elseif lookuptype=="pair" then
+ local one=specification.offsets[1]
+ local two=specification.offsets[2]
+ local paired=unicodes[specification.paired]
+ if one then
+ if two then
+ lookuplist[l]={ paired,{ one.x or 0,one.y or 0,one.h or 0,one.v or 0 },{ two.x or 0,two.y or 0,two.h or 0,two.v or 0 } }
+ else
+ lookuplist[l]={ paired,{ one.x or 0,one.y or 0,one.h or 0,one.v or 0 } }
+ end
+ else
+ if two then
+ lookuplist[l]={ paired,{},{ two.x or 0,two.y or 0,two.h or 0,two.v or 0} }
+ else
+ lookuplist[l]={ paired }
+ end
+ end
+ end
+ end
+ end
+ local slookups,mlookups
+ for tag,lookuplist in next,lookups do
+ if #lookuplist==1 then
+ if slookups then
+ slookups[tag]=lookuplist[1]
+ else
+ slookups={ [tag]=lookuplist[1] }
+ end
+ else
+ if mlookups then
+ mlookups[tag]=lookuplist
+ else
+ mlookups={ [tag]=lookuplist }
+ end
+ end
+ end
+ if slookups then
+ description.slookups=slookups
+ end
+ if mlookups then
+ description.mlookups=mlookups
+ end
+ end
+ end
+end
+actions["reorganize glyph anchors"]=function(data,filename,raw)
+ local descriptions=data.descriptions
+ for unicode,description in next,descriptions do
+ local anchors=description.glyph.anchors
+ if anchors then
+ for class,data in next,anchors do
+ if class=="baselig" then
+ for tag,specification in next,data do
+ for i=1,#specification do
+ local si=specification[i]
+ specification[i]={ si and si.x or 0,si and si.y or 0 }
+ end
+ end
+ else
+ for tag,specification in next,data do
+ data[tag]={ specification.x or 0,specification.y or 0 }
+ end
+ end
+ end
+ description.anchors=anchors
+ end
+ end
+end
+function otf.setfeatures(tfmdata,features)
+ local okay=constructors.initializefeatures("otf",tfmdata,features,trace_features,report_otf)
+ if okay then
+ return constructors.collectprocessors("otf",tfmdata,features,trace_features,report_otf)
+ else
+ return {}
+ end
+end
+local function copytotfm(data,cache_id)
+ if data then
+ local metadata=data.metadata
+ local resources=data.resources
+ local properties=derivetable(data.properties)
+ local descriptions=derivetable(data.descriptions)
+ local goodies=derivetable(data.goodies)
+ local characters={}
+ local parameters={}
+ local mathparameters={}
+ local pfminfo=metadata.pfminfo or {}
+ local resources=data.resources
+ local unicodes=resources.unicodes
+ local spaceunits=500
+ local spacer="space"
+ local designsize=metadata.designsize or metadata.design_size or 100
+ local mathspecs=metadata.math
+ if designsize==0 then
+ designsize=100
+ end
+ if mathspecs then
+ for name,value in next,mathspecs do
+ mathparameters[name]=value
+ end
+ end
+ for unicode,_ in next,data.descriptions do
+ characters[unicode]={}
+ end
+ if mathspecs then
+ for unicode,character in next,characters do
+ local d=descriptions[unicode]
+ local m=d.math
+ if m then
+ local variants=m.horiz_variants
+ local parts=m.horiz_parts
+ if variants then
+ local c=character
+ for i=1,#variants do
+ local un=variants[i]
+ c.next=un
+ c=characters[un]
+ end
+ c.horiz_variants=parts
+ elseif parts then
+ character.horiz_variants=parts
+ end
+ local variants=m.vert_variants
+ local parts=m.vert_parts
+ if variants then
+ local c=character
+ for i=1,#variants do
+ local un=variants[i]
+ c.next=un
+ c=characters[un]
+ end
+ c.vert_variants=parts
+ elseif parts then
+ character.vert_variants=parts
+ end
+ local italic_correction=m.vert_italic_correction
+ if italic_correction then
+ character.vert_italic_correction=italic_correction
+ end
+ local top_accent=m.top_accent
+ if top_accent then
+ character.top_accent=top_accent
+ end
+ local kerns=m.kerns
+ if kerns then
+ character.mathkerns=kerns
+ end
+ end
+ end
+ end
+ local filename=constructors.checkedfilename(resources)
+ local fontname=metadata.fontname
+ local fullname=metadata.fullname or fontname
+ local units=metadata.units_per_em or 1000
+ if units==0 then
+ units=1000
+ metadata.units_per_em=1000
+ report_otf("changing %a units to %a",0,units)
+ end
+ local monospaced=metadata.isfixedpitch or (pfminfo.panose and pfminfo.panose.proportion=="Monospaced")
+ local charwidth=pfminfo.avgwidth
+ local charxheight=pfminfo.os2_xheight and pfminfo.os2_xheight>0 and pfminfo.os2_xheight
+ local italicangle=metadata.italicangle
+ properties.monospaced=monospaced
+ parameters.italicangle=italicangle
+ parameters.charwidth=charwidth
+ parameters.charxheight=charxheight
+ local space=0x0020
+ local emdash=0x2014
+ if monospaced then
+ if descriptions[space] then
+ spaceunits,spacer=descriptions[space].width,"space"
+ end
+ if not spaceunits and descriptions[emdash] then
+ spaceunits,spacer=descriptions[emdash].width,"emdash"
+ end
+ if not spaceunits and charwidth then
+ spaceunits,spacer=charwidth,"charwidth"
+ end
+ else
+ if descriptions[space] then
+ spaceunits,spacer=descriptions[space].width,"space"
+ end
+ if not spaceunits and descriptions[emdash] then
+ spaceunits,spacer=descriptions[emdash].width/2,"emdash/2"
+ end
+ if not spaceunits and charwidth then
+ spaceunits,spacer=charwidth,"charwidth"
+ end
+ end
+ spaceunits=tonumber(spaceunits) or 500
+ parameters.slant=0
+ parameters.space=spaceunits
+ parameters.space_stretch=units/2
+ parameters.space_shrink=1*units/3
+ parameters.x_height=2*units/5
+ parameters.quad=units
+ if spaceunits<2*units/5 then
+ end
+ if italicangle and italicangle~=0 then
+ parameters.italicangle=italicangle
+ parameters.italicfactor=math.cos(math.rad(90+italicangle))
+ parameters.slant=- math.tan(italicangle*math.pi/180)
+ end
+ if monospaced then
+ parameters.space_stretch=0
+ parameters.space_shrink=0
+ elseif syncspace then
+ parameters.space_stretch=spaceunits/2
+ parameters.space_shrink=spaceunits/3
+ end
+ parameters.extra_space=parameters.space_shrink
+ if charxheight then
+ parameters.x_height=charxheight
+ else
+ local x=0x78
+ if x then
+ local x=descriptions[x]
+ if x then
+ parameters.x_height=x.height
+ end
+ end
+ end
+ parameters.designsize=(designsize/10)*65536
+ parameters.ascender=abs(metadata.ascent or 0)
+ parameters.descender=abs(metadata.descent or 0)
+ parameters.units=units
+ properties.space=spacer
+ properties.encodingbytes=2
+ properties.format=data.format or otf_format(filename) or formats.otf
+ properties.noglyphnames=true
+ properties.filename=filename
+ properties.fontname=fontname
+ properties.fullname=fullname
+ properties.psname=fontname or fullname
+ properties.name=filename or fullname
+ return {
+ characters=characters,
+ descriptions=descriptions,
+ parameters=parameters,
+ mathparameters=mathparameters,
+ resources=resources,
+ properties=properties,
+ goodies=goodies,
+ }
+ end
+end
+local function otftotfm(specification)
+ local cache_id=specification.hash
+ local tfmdata=containers.read(constructors.cache,cache_id)
+ if not tfmdata then
+ local name=specification.name
+ local sub=specification.sub
+ local filename=specification.filename
+ local features=specification.features.normal
+ local rawdata=otf.load(filename,sub,features and features.featurefile)
+ if rawdata and next(rawdata) then
+ local descriptions=rawdata.descriptions
+ local duplicates=rawdata.resources.duplicates
+ if duplicates then
+ local nofduplicates,nofduplicated=0,0
+ for parent,list in next,duplicates do
+ for i=1,#list do
+ local unicode=list[i]
+ if not descriptions[unicode] then
+ descriptions[unicode]=descriptions[parent]
+ nofduplicated=nofduplicated+1
+ end
+ end
+ nofduplicates=nofduplicates+#list
+ end
+ if trace_otf and nofduplicated~=nofduplicates then
+ report_otf("%i extra duplicates copied out of %i",nofduplicated,nofduplicates)
+ end
+ end
+ rawdata.lookuphash={}
+ tfmdata=copytotfm(rawdata,cache_id)
+ if tfmdata and next(tfmdata) then
+ local features=constructors.checkedfeatures("otf",features)
+ local shared=tfmdata.shared
+ if not shared then
+ shared={}
+ tfmdata.shared=shared
+ end
+ shared.rawdata=rawdata
+ shared.dynamics={}
+ tfmdata.changed={}
+ shared.features=features
+ shared.processes=otf.setfeatures(tfmdata,features)
+ end
+ end
+ containers.write(constructors.cache,cache_id,tfmdata)
+ end
+ return tfmdata
+end
+local function read_from_otf(specification)
+ local tfmdata=otftotfm(specification)
+ if tfmdata then
+ tfmdata.properties.name=specification.name
+ tfmdata.properties.sub=specification.sub
+ tfmdata=constructors.scale(tfmdata,specification)
+ local allfeatures=tfmdata.shared.features or specification.features.normal
+ constructors.applymanipulators("otf",tfmdata,allfeatures,trace_features,report_otf)
+ constructors.setname(tfmdata,specification)
+ fonts.loggers.register(tfmdata,file.suffix(specification.filename),specification)
+ end
+ return tfmdata
+end
+local function checkmathsize(tfmdata,mathsize)
+ local mathdata=tfmdata.shared.rawdata.metadata.math
+ local mathsize=tonumber(mathsize)
+ if mathdata then
+ local parameters=tfmdata.parameters
+ parameters.scriptpercentage=mathdata.ScriptPercentScaleDown
+ parameters.scriptscriptpercentage=mathdata.ScriptScriptPercentScaleDown
+ parameters.mathsize=mathsize
+ end
+end
+registerotffeature {
+ name="mathsize",
+ description="apply mathsize specified in the font",
+ initializers={
+ base=checkmathsize,
+ node=checkmathsize,
+ }
+}
+function otf.collectlookups(rawdata,kind,script,language)
+ local sequences=rawdata.resources.sequences
+ if sequences then
+ local featuremap,featurelist={},{}
+ for s=1,#sequences do
+ local sequence=sequences[s]
+ local features=sequence.features
+ features=features and features[kind]
+ features=features and (features[script] or features[default] or features[wildcard])
+ features=features and (features[language] or features[default] or features[wildcard])
+ if features then
+ local subtables=sequence.subtables
+ if subtables then
+ for s=1,#subtables do
+ local ss=subtables[s]
+ if not featuremap[s] then
+ featuremap[ss]=true
+ featurelist[#featurelist+1]=ss
+ end
+ end
+ end
+ end
+ end
+ if #featurelist>0 then
+ return featuremap,featurelist
+ end
+ end
+ return nil,nil
+end
+local function check_otf(forced,specification,suffix)
+ local name=specification.name
+ if forced then
+ name=specification.forcedname
+ end
+ local fullname=findbinfile(name,suffix) or ""
+ if fullname=="" then
+ fullname=fonts.names.getfilename(name,suffix) or ""
+ end
+ if fullname~="" and not fonts.names.ignoredfile(fullname) then
+ specification.filename=fullname
+ return read_from_otf(specification)
+ end
+end
+local function opentypereader(specification,suffix)
+ local forced=specification.forced or ""
+ if formats[forced] then
+ return check_otf(true,specification,forced)
+ else
+ return check_otf(false,specification,suffix)
+ end
+end
+readers.opentype=opentypereader
+function readers.otf (specification) return opentypereader(specification,"otf") end
+function readers.ttf (specification) return opentypereader(specification,"ttf") end
+function readers.ttc (specification) return opentypereader(specification,"ttf") end
+function readers.dfont(specification) return opentypereader(specification,"ttf") end
+function otf.scriptandlanguage(tfmdata,attr)
+ local properties=tfmdata.properties
+ return properties.script or "dflt",properties.language or "dflt"
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-otb']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local concat=table.concat
+local format,gmatch,gsub,find,match,lower,strip=string.format,string.gmatch,string.gsub,string.find,string.match,string.lower,string.strip
+local type,next,tonumber,tostring=type,next,tonumber,tostring
+local lpegmatch=lpeg.match
+local utfchar=utf.char
+local trace_baseinit=false trackers.register("otf.baseinit",function(v) trace_baseinit=v end)
+local trace_singles=false trackers.register("otf.singles",function(v) trace_singles=v end)
+local trace_multiples=false trackers.register("otf.multiples",function(v) trace_multiples=v end)
+local trace_alternatives=false trackers.register("otf.alternatives",function(v) trace_alternatives=v end)
+local trace_ligatures=false trackers.register("otf.ligatures",function(v) trace_ligatures=v end)
+local trace_ligatures_detail=false trackers.register("otf.ligatures.detail",function(v) trace_ligatures_detail=v end)
+local trace_kerns=false trackers.register("otf.kerns",function(v) trace_kerns=v end)
+local trace_preparing=false trackers.register("otf.preparing",function(v) trace_preparing=v end)
+local report_prepare=logs.reporter("fonts","otf prepare")
+local fonts=fonts
+local otf=fonts.handlers.otf
+local otffeatures=otf.features
+local registerotffeature=otffeatures.register
+otf.defaultbasealternate="none"
+local wildcard="*"
+local default="dflt"
+local formatters=string.formatters
+local f_unicode=formatters["%U"]
+local f_uniname=formatters["%U (%s)"]
+local f_unilist=formatters["% t (% t)"]
+local function gref(descriptions,n)
+ if type(n)=="number" then
+ local name=descriptions[n].name
+ if name then
+ return f_uniname(n,name)
+ else
+ return f_unicode(n)
+ end
+ elseif n then
+ local num,nam,j={},{},0
+ for i=1,#n do
+ local ni=n[i]
+ if tonumber(ni) then
+ j=j+1
+ local di=descriptions[ni]
+ num[j]=f_unicode(ni)
+ nam[j]=di and di.name or "-"
+ end
+ end
+ return f_unilist(num,nam)
+ else
+ return "<error in base mode tracing>"
+ end
+end
+local function cref(feature,lookupname)
+ if lookupname then
+ return formatters["feature %a, lookup %a"](feature,lookupname)
+ else
+ return formatters["feature %a"](feature)
+ end
+end
+local function report_alternate(feature,lookupname,descriptions,unicode,replacement,value,comment)
+ report_prepare("%s: base alternate %s => %s (%S => %S)",
+ cref(feature,lookupname),
+ gref(descriptions,unicode),
+ replacement and gref(descriptions,replacement),
+ value,
+ comment)
+end
+local function report_substitution(feature,lookupname,descriptions,unicode,substitution)
+ report_prepare("%s: base substitution %s => %S",
+ cref(feature,lookupname),
+ gref(descriptions,unicode),
+ gref(descriptions,substitution))
+end
+local function report_ligature(feature,lookupname,descriptions,unicode,ligature)
+ report_prepare("%s: base ligature %s => %S",
+ cref(feature,lookupname),
+ gref(descriptions,ligature),
+ gref(descriptions,unicode))
+end
+local function report_kern(feature,lookupname,descriptions,unicode,otherunicode,value)
+ report_prepare("%s: base kern %s + %s => %S",
+ cref(feature,lookupname),
+ gref(descriptions,unicode),
+ gref(descriptions,otherunicode),
+ value)
+end
+local basemethods={}
+local basemethod="<unset>"
+local function applybasemethod(what,...)
+ local m=basemethods[basemethod][what]
+ if m then
+ return m(...)
+ end
+end
+local basehash,basehashes,applied={},1,{}
+local function registerbasehash(tfmdata)
+ local properties=tfmdata.properties
+ local hash=concat(applied," ")
+ local base=basehash[hash]
+ if not base then
+ basehashes=basehashes+1
+ base=basehashes
+ basehash[hash]=base
+ end
+ properties.basehash=base
+ properties.fullname=properties.fullname.."-"..base
+ applied={}
+end
+local function registerbasefeature(feature,value)
+ applied[#applied+1]=feature.."="..tostring(value)
+end
+local trace=false
+local function finalize_ligatures(tfmdata,ligatures)
+ local nofligatures=#ligatures
+ if nofligatures>0 then
+ local characters=tfmdata.characters
+ local descriptions=tfmdata.descriptions
+ local resources=tfmdata.resources
+ local unicodes=resources.unicodes
+ local private=resources.private
+ local alldone=false
+ while not alldone do
+ local done=0
+ for i=1,nofligatures do
+ local ligature=ligatures[i]
+ if ligature then
+ local unicode,lookupdata=ligature[1],ligature[2]
+ if trace_ligatures_detail then
+ report_prepare("building % a into %a",lookupdata,unicode)
+ end
+ local size=#lookupdata
+ local firstcode=lookupdata[1]
+ local firstdata=characters[firstcode]
+ local okay=false
+ if firstdata then
+ local firstname="ctx_"..firstcode
+ for i=1,size-1 do
+ local firstdata=characters[firstcode]
+ if not firstdata then
+ firstcode=private
+ if trace_ligatures_detail then
+ report_prepare("defining %a as %a",firstname,firstcode)
+ end
+ unicodes[firstname]=firstcode
+ firstdata={ intermediate=true,ligatures={} }
+ characters[firstcode]=firstdata
+ descriptions[firstcode]={ name=firstname }
+ private=private+1
+ end
+ local target
+ local secondcode=lookupdata[i+1]
+ local secondname=firstname.."_"..secondcode
+ if i==size-1 then
+ target=unicode
+ if not unicodes[secondname] then
+ unicodes[secondname]=unicode
+ end
+ okay=true
+ else
+ target=unicodes[secondname]
+ if not target then
+ break
+ end
+ end
+ if trace_ligatures_detail then
+ report_prepare("codes (%a,%a) + (%a,%a) -> %a",firstname,firstcode,secondname,secondcode,target)
+ end
+ local firstligs=firstdata.ligatures
+ if firstligs then
+ firstligs[secondcode]={ char=target }
+ else
+ firstdata.ligatures={ [secondcode]={ char=target } }
+ end
+ firstcode=target
+ firstname=secondname
+ end
+ elseif trace_ligatures_detail then
+ report_prepare("no glyph (%a,%a) for building %a",firstname,firstcode,target)
+ end
+ if okay then
+ ligatures[i]=false
+ done=done+1
+ end
+ end
+ end
+ alldone=done==0
+ end
+ if trace_ligatures_detail then
+ for k,v in table.sortedhash(characters) do
+ if v.ligatures then
+ table.print(v,k)
+ end
+ end
+ end
+ resources.private=private
+ end
+end
+local function preparesubstitutions(tfmdata,feature,value,validlookups,lookuplist)
+ local characters=tfmdata.characters
+ local descriptions=tfmdata.descriptions
+ local resources=tfmdata.resources
+ local changed=tfmdata.changed
+ local unicodes=resources.unicodes
+ local lookuphash=resources.lookuphash
+ local lookuptypes=resources.lookuptypes
+ local ligatures={}
+ local alternate=tonumber(value) or true and 1
+ local defaultalt=otf.defaultbasealternate
+ local trace_singles=trace_baseinit and trace_singles
+ local trace_alternatives=trace_baseinit and trace_alternatives
+ local trace_ligatures=trace_baseinit and trace_ligatures
+ local actions={
+ substitution=function(lookupdata,lookupname,description,unicode)
+ if trace_singles then
+ report_substitution(feature,lookupname,descriptions,unicode,lookupdata)
+ end
+ changed[unicode]=lookupdata
+ end,
+ alternate=function(lookupdata,lookupname,description,unicode)
+ local replacement=lookupdata[alternate]
+ if replacement then
+ changed[unicode]=replacement
+ if trace_alternatives then
+ report_alternate(feature,lookupname,descriptions,unicode,replacement,value,"normal")
+ end
+ elseif defaultalt=="first" then
+ replacement=lookupdata[1]
+ changed[unicode]=replacement
+ if trace_alternatives then
+ report_alternate(feature,lookupname,descriptions,unicode,replacement,value,defaultalt)
+ end
+ elseif defaultalt=="last" then
+ replacement=lookupdata[#data]
+ if trace_alternatives then
+ report_alternate(feature,lookupname,descriptions,unicode,replacement,value,defaultalt)
+ end
+ else
+ if trace_alternatives then
+ report_alternate(feature,lookupname,descriptions,unicode,replacement,value,"unknown")
+ end
+ end
+ end,
+ ligature=function(lookupdata,lookupname,description,unicode)
+ if trace_ligatures then
+ report_ligature(feature,lookupname,descriptions,unicode,lookupdata)
+ end
+ ligatures[#ligatures+1]={ unicode,lookupdata }
+ end,
+ }
+ for unicode,character in next,characters do
+ local description=descriptions[unicode]
+ local lookups=description.slookups
+ if lookups then
+ for l=1,#lookuplist do
+ local lookupname=lookuplist[l]
+ local lookupdata=lookups[lookupname]
+ if lookupdata then
+ local lookuptype=lookuptypes[lookupname]
+ local action=actions[lookuptype]
+ if action then
+ action(lookupdata,lookupname,description,unicode)
+ end
+ end
+ end
+ end
+ local lookups=description.mlookups
+ if lookups then
+ for l=1,#lookuplist do
+ local lookupname=lookuplist[l]
+ local lookuplist=lookups[lookupname]
+ if lookuplist then
+ local lookuptype=lookuptypes[lookupname]
+ local action=actions[lookuptype]
+ if action then
+ for i=1,#lookuplist do
+ action(lookuplist[i],lookupname,description,unicode)
+ end
+ end
+ end
+ end
+ end
+ end
+ finalize_ligatures(tfmdata,ligatures)
+end
+local function preparepositionings(tfmdata,feature,value,validlookups,lookuplist)
+ local characters=tfmdata.characters
+ local descriptions=tfmdata.descriptions
+ local resources=tfmdata.resources
+ local unicodes=resources.unicodes
+ local sharedkerns={}
+ local traceindeed=trace_baseinit and trace_kerns
+ for unicode,character in next,characters do
+ local description=descriptions[unicode]
+ local rawkerns=description.kerns
+ if rawkerns then
+ local s=sharedkerns[rawkerns]
+ if s==false then
+ elseif s then
+ character.kerns=s
+ else
+ local newkerns=character.kerns
+ local done=false
+ for l=1,#lookuplist do
+ local lookup=lookuplist[l]
+ local kerns=rawkerns[lookup]
+ if kerns then
+ for otherunicode,value in next,kerns do
+ if value==0 then
+ elseif not newkerns then
+ newkerns={ [otherunicode]=value }
+ done=true
+ if traceindeed then
+ report_kern(feature,lookup,descriptions,unicode,otherunicode,value)
+ end
+ elseif not newkerns[otherunicode] then
+ newkerns[otherunicode]=value
+ done=true
+ if traceindeed then
+ report_kern(feature,lookup,descriptions,unicode,otherunicode,value)
+ end
+ end
+ end
+ end
+ end
+ if done then
+ sharedkerns[rawkerns]=newkerns
+ character.kerns=newkerns
+ else
+ sharedkerns[rawkerns]=false
+ end
+ end
+ end
+ end
+end
+basemethods.independent={
+ preparesubstitutions=preparesubstitutions,
+ preparepositionings=preparepositionings,
+}
+local function makefake(tfmdata,name,present)
+ local resources=tfmdata.resources
+ local private=resources.private
+ local character={ intermediate=true,ligatures={} }
+ resources.unicodes[name]=private
+ tfmdata.characters[private]=character
+ tfmdata.descriptions[private]={ name=name }
+ resources.private=private+1
+ present[name]=private
+ return character
+end
+local function make_1(present,tree,name)
+ for k,v in next,tree do
+ if k=="ligature" then
+ present[name]=v
+ else
+ make_1(present,v,name.."_"..k)
+ end
+ end
+end
+local function make_2(present,tfmdata,characters,tree,name,preceding,unicode,done,lookupname)
+ for k,v in next,tree do
+ if k=="ligature" then
+ local character=characters[preceding]
+ if not character then
+ if trace_baseinit then
+ report_prepare("weird ligature in lookup %a, current %C, preceding %C",lookupname,v,preceding)
+ end
+ character=makefake(tfmdata,name,present)
+ end
+ local ligatures=character.ligatures
+ if ligatures then
+ ligatures[unicode]={ char=v }
+ else
+ character.ligatures={ [unicode]={ char=v } }
+ end
+ if done then
+ local d=done[lookupname]
+ if not d then
+ done[lookupname]={ "dummy",v }
+ else
+ d[#d+1]=v
+ end
+ end
+ else
+ local code=present[name] or unicode
+ local name=name.."_"..k
+ make_2(present,tfmdata,characters,v,name,code,k,done,lookupname)
+ end
+ end
+end
+local function preparesubstitutions(tfmdata,feature,value,validlookups,lookuplist)
+ local characters=tfmdata.characters
+ local descriptions=tfmdata.descriptions
+ local resources=tfmdata.resources
+ local changed=tfmdata.changed
+ local lookuphash=resources.lookuphash
+ local lookuptypes=resources.lookuptypes
+ local ligatures={}
+ local alternate=tonumber(value) or true and 1
+ local defaultalt=otf.defaultbasealternate
+ local trace_singles=trace_baseinit and trace_singles
+ local trace_alternatives=trace_baseinit and trace_alternatives
+ local trace_ligatures=trace_baseinit and trace_ligatures
+ for l=1,#lookuplist do
+ local lookupname=lookuplist[l]
+ local lookupdata=lookuphash[lookupname]
+ local lookuptype=lookuptypes[lookupname]
+ for unicode,data in next,lookupdata do
+ if lookuptype=="substitution" then
+ if trace_singles then
+ report_substitution(feature,lookupname,descriptions,unicode,data)
+ end
+ changed[unicode]=data
+ elseif lookuptype=="alternate" then
+ local replacement=data[alternate]
+ if replacement then
+ changed[unicode]=replacement
+ if trace_alternatives then
+ report_alternate(feature,lookupname,descriptions,unicode,replacement,value,"normal")
+ end
+ elseif defaultalt=="first" then
+ replacement=data[1]
+ changed[unicode]=replacement
+ if trace_alternatives then
+ report_alternate(feature,lookupname,descriptions,unicode,replacement,value,defaultalt)
+ end
+ elseif defaultalt=="last" then
+ replacement=data[#data]
+ if trace_alternatives then
+ report_alternate(feature,lookupname,descriptions,unicode,replacement,value,defaultalt)
+ end
+ else
+ if trace_alternatives then
+ report_alternate(feature,lookupname,descriptions,unicode,replacement,value,"unknown")
+ end
+ end
+ elseif lookuptype=="ligature" then
+ ligatures[#ligatures+1]={ unicode,data,lookupname }
+ if trace_ligatures then
+ report_ligature(feature,lookupname,descriptions,unicode,data)
+ end
+ end
+ end
+ end
+ local nofligatures=#ligatures
+ if nofligatures>0 then
+ local characters=tfmdata.characters
+ local present={}
+ local done=trace_baseinit and trace_ligatures and {}
+ for i=1,nofligatures do
+ local ligature=ligatures[i]
+ local unicode,tree=ligature[1],ligature[2]
+ make_1(present,tree,"ctx_"..unicode)
+ end
+ for i=1,nofligatures do
+ local ligature=ligatures[i]
+ local unicode,tree,lookupname=ligature[1],ligature[2],ligature[3]
+ make_2(present,tfmdata,characters,tree,"ctx_"..unicode,unicode,unicode,done,lookupname)
+ end
+ end
+end
+local function preparepositionings(tfmdata,feature,value,validlookups,lookuplist)
+ local characters=tfmdata.characters
+ local descriptions=tfmdata.descriptions
+ local resources=tfmdata.resources
+ local lookuphash=resources.lookuphash
+ local traceindeed=trace_baseinit and trace_kerns
+ for l=1,#lookuplist do
+ local lookupname=lookuplist[l]
+ local lookupdata=lookuphash[lookupname]
+ for unicode,data in next,lookupdata do
+ local character=characters[unicode]
+ local kerns=character.kerns
+ if not kerns then
+ kerns={}
+ character.kerns=kerns
+ end
+ if traceindeed then
+ for otherunicode,kern in next,data do
+ if not kerns[otherunicode] and kern~=0 then
+ kerns[otherunicode]=kern
+ report_kern(feature,lookup,descriptions,unicode,otherunicode,kern)
+ end
+ end
+ else
+ for otherunicode,kern in next,data do
+ if not kerns[otherunicode] and kern~=0 then
+ kerns[otherunicode]=kern
+ end
+ end
+ end
+ end
+ end
+end
+local function initializehashes(tfmdata)
+ nodeinitializers.features(tfmdata)
+end
+basemethods.shared={
+ initializehashes=initializehashes,
+ preparesubstitutions=preparesubstitutions,
+ preparepositionings=preparepositionings,
+}
+basemethod="independent"
+local function featuresinitializer(tfmdata,value)
+ if true then
+ local starttime=trace_preparing and os.clock()
+ local features=tfmdata.shared.features
+ local fullname=tfmdata.properties.fullname or "?"
+ if features then
+ applybasemethod("initializehashes",tfmdata)
+ local collectlookups=otf.collectlookups
+ local rawdata=tfmdata.shared.rawdata
+ local properties=tfmdata.properties
+ local script=properties.script
+ local language=properties.language
+ local basesubstitutions=rawdata.resources.features.gsub
+ local basepositionings=rawdata.resources.features.gpos
+ if basesubstitutions or basepositionings then
+ local sequences=tfmdata.resources.sequences
+ for s=1,#sequences do
+ local sequence=sequences[s]
+ local sfeatures=sequence.features
+ if sfeatures then
+ local order=sequence.order
+ if order then
+ for i=1,#order do
+ local feature=order[i]
+ local value=features[feature]
+ if value then
+ local validlookups,lookuplist=collectlookups(rawdata,feature,script,language)
+ if not validlookups then
+ elseif basesubstitutions and basesubstitutions[feature] then
+ if trace_preparing then
+ report_prepare("filtering base %s feature %a for %a with value %a","sub",feature,fullname,value)
+ end
+ applybasemethod("preparesubstitutions",tfmdata,feature,value,validlookups,lookuplist)
+ registerbasefeature(feature,value)
+ elseif basepositionings and basepositionings[feature] then
+ if trace_preparing then
+ report_prepare("filtering base %a feature %a for %a with value %a","pos",feature,fullname,value)
+ end
+ applybasemethod("preparepositionings",tfmdata,feature,value,validlookups,lookuplist)
+ registerbasefeature(feature,value)
+ end
+ end
+ end
+ end
+ end
+ end
+ end
+ registerbasehash(tfmdata)
+ end
+ if trace_preparing then
+ report_prepare("preparation time is %0.3f seconds for %a",os.clock()-starttime,fullname)
+ end
+ end
+end
+registerotffeature {
+ name="features",
+ description="features",
+ default=true,
+ initializers={
+ base=featuresinitializer,
+ }
+}
+directives.register("fonts.otf.loader.basemethod",function(v)
+ if basemethods[v] then
+ basemethod=v
+ end
+end)
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['node-inj']={
+ version=1.001,
+ comment="companion to node-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files",
+}
+local next=next
+local utfchar=utf.char
+local trace_injections=false trackers.register("nodes.injections",function(v) trace_injections=v end)
+local report_injections=logs.reporter("nodes","injections")
+local attributes,nodes,node=attributes,nodes,node
+fonts=fonts
+local fontdata=fonts.hashes.identifiers
+nodes.injections=nodes.injections or {}
+local injections=nodes.injections
+local nodecodes=nodes.nodecodes
+local glyph_code=nodecodes.glyph
+local kern_code=nodecodes.kern
+local nodepool=nodes.pool
+local newkern=nodepool.kern
+local traverse_id=node.traverse_id
+local insert_node_before=node.insert_before
+local insert_node_after=node.insert_after
+local a_kernpair=attributes.private('kernpair')
+local a_ligacomp=attributes.private('ligacomp')
+local a_markbase=attributes.private('markbase')
+local a_markmark=attributes.private('markmark')
+local a_markdone=attributes.private('markdone')
+local a_cursbase=attributes.private('cursbase')
+local a_curscurs=attributes.private('curscurs')
+local a_cursdone=attributes.private('cursdone')
+function injections.installnewkern(nk)
+ newkern=nk or newkern
+end
+local cursives={}
+local marks={}
+local kerns={}
+function injections.setcursive(start,nxt,factor,rlmode,exit,entry,tfmstart,tfmnext)
+ local dx,dy=factor*(exit[1]-entry[1]),factor*(exit[2]-entry[2])
+ local ws,wn=tfmstart.width,tfmnext.width
+ local bound=#cursives+1
+ start[a_cursbase]=bound
+ nxt[a_curscurs]=bound
+ cursives[bound]={ rlmode,dx,dy,ws,wn }
+ return dx,dy,bound
+end
+function injections.setpair(current,factor,rlmode,r2lflag,spec,tfmchr)
+ local x,y,w,h=factor*spec[1],factor*spec[2],factor*spec[3],factor*spec[4]
+ if x~=0 or w~=0 or y~=0 or h~=0 then
+ local bound=current[a_kernpair]
+ if bound then
+ local kb=kerns[bound]
+ kb[2],kb[3],kb[4],kb[5]=(kb[2] or 0)+x,(kb[3] or 0)+y,(kb[4] or 0)+w,(kb[5] or 0)+h
+ else
+ bound=#kerns+1
+ current[a_kernpair]=bound
+ kerns[bound]={ rlmode,x,y,w,h,r2lflag,tfmchr.width }
+ end
+ return x,y,w,h,bound
+ end
+ return x,y,w,h
+end
+function injections.setkern(current,factor,rlmode,x,tfmchr)
+ local dx=factor*x
+ if dx~=0 then
+ local bound=#kerns+1
+ current[a_kernpair]=bound
+ kerns[bound]={ rlmode,dx }
+ return dx,bound
+ else
+ return 0,0
+ end
+end
+function injections.setmark(start,base,factor,rlmode,ba,ma)
+ local dx,dy=factor*(ba[1]-ma[1]),factor*(ba[2]-ma[2])
+ local bound=base[a_markbase]
+ local index=1
+ if bound then
+ local mb=marks[bound]
+ if mb then
+ index=#mb+1
+ mb[index]={ dx,dy,rlmode }
+ start[a_markmark]=bound
+ start[a_markdone]=index
+ return dx,dy,bound
+ else
+ report_injections("possible problem, %U is base mark without data (id %a)",base.char,bound)
+ end
+ end
+ index=index or 1
+ bound=#marks+1
+ base[a_markbase]=bound
+ start[a_markmark]=bound
+ start[a_markdone]=index
+ marks[bound]={ [index]={ dx,dy,rlmode } }
+ return dx,dy,bound
+end
+local function dir(n)
+ return (n and n<0 and "r-to-l") or (n and n>0 and "l-to-r") or "unset"
+end
+local function trace(head)
+ report_injections("begin run")
+ for n in traverse_id(glyph_code,head) do
+ if n.subtype<256 then
+ local kp=n[a_kernpair]
+ local mb=n[a_markbase]
+ local mm=n[a_markmark]
+ local md=n[a_markdone]
+ local cb=n[a_cursbase]
+ local cc=n[a_curscurs]
+ local char=n.char
+ report_injections("font %s, char %U, glyph %c",n.font,char,char)
+ if kp then
+ local k=kerns[kp]
+ if k[3] then
+ report_injections(" pairkern: dir %a, x %p, y %p, w %p, h %p",dir(k[1]),k[2],k[3],k[4],k[5])
+ else
+ report_injections(" kern: dir %a, dx %p",dir(k[1]),k[2])
+ end
+ end
+ if mb then
+ report_injections(" markbase: bound %a",mb)
+ end
+ if mm then
+ local m=marks[mm]
+ if mb then
+ local m=m[mb]
+ if m then
+ report_injections(" markmark: bound %a, index %a, dx %p, dy %p",mm,md,m[1],m[2])
+ else
+ report_injections(" markmark: bound %a, missing index",mm)
+ end
+ else
+ m=m[1]
+ report_injections(" markmark: bound %a, dx %p, dy %p",mm,m and m[1],m and m[2])
+ end
+ end
+ if cb then
+ report_injections(" cursbase: bound %a",cb)
+ end
+ if cc then
+ local c=cursives[cc]
+ report_injections(" curscurs: bound %a, dir %a, dx %p, dy %p",cc,dir(c[1]),c[2],c[3])
+ end
+ end
+ end
+ report_injections("end run")
+end
+local function show_result(head)
+ local current=head
+ local skipping=false
+ while current do
+ local id=current.id
+ if id==glyph_code then
+ report_injections("char: %C, width %p, xoffset %p, yoffset %p",current.char,current.width,current.xoffset,current.yoffset)
+ skipping=false
+ elseif id==kern_code then
+ report_injections("kern: %p",current.kern)
+ skipping=false
+ elseif not skipping then
+ report_injections()
+ skipping=true
+ end
+ current=current.next
+ end
+end
+function injections.handler(head,where,keep)
+ local has_marks,has_cursives,has_kerns=next(marks),next(cursives),next(kerns)
+ if has_marks or has_cursives then
+ if trace_injections then
+ trace(head)
+ end
+ local done,ky,rl,valid,cx,wx,mk,nofvalid=false,{},{},{},{},{},{},0
+ if has_kerns then
+ local nf,tm=nil,nil
+ for n in traverse_id(glyph_code,head) do
+ if n.subtype<256 then
+ nofvalid=nofvalid+1
+ valid[nofvalid]=n
+ if n.font~=nf then
+ nf=n.font
+ tm=fontdata[nf].resources.marks
+ end
+ if tm then
+ mk[n]=tm[n.char]
+ end
+ local k=n[a_kernpair]
+ if k then
+ local kk=kerns[k]
+ if kk then
+ local x,y,w,h=kk[2] or 0,kk[3] or 0,kk[4] or 0,kk[5] or 0
+ local dy=y-h
+ if dy~=0 then
+ ky[n]=dy
+ end
+ if w~=0 or x~=0 then
+ wx[n]=kk
+ end
+ rl[n]=kk[1]
+ end
+ end
+ end
+ end
+ else
+ local nf,tm=nil,nil
+ for n in traverse_id(glyph_code,head) do
+ if n.subtype<256 then
+ nofvalid=nofvalid+1
+ valid[nofvalid]=n
+ if n.font~=nf then
+ nf=n.font
+ tm=fontdata[nf].resources.marks
+ end
+ if tm then
+ mk[n]=tm[n.char]
+ end
+ end
+ end
+ end
+ if nofvalid>0 then
+ local cx={}
+ if has_kerns and next(ky) then
+ for n,k in next,ky do
+ n.yoffset=k
+ end
+ end
+ if has_cursives then
+ local p_cursbase,p=nil,nil
+ local t,d,maxt={},{},0
+ for i=1,nofvalid do
+ local n=valid[i]
+ if not mk[n] then
+ local n_cursbase=n[a_cursbase]
+ if p_cursbase then
+ local n_curscurs=n[a_curscurs]
+ if p_cursbase==n_curscurs then
+ local c=cursives[n_curscurs]
+ if c then
+ local rlmode,dx,dy,ws,wn=c[1],c[2],c[3],c[4],c[5]
+ if rlmode>=0 then
+ dx=dx-ws
+ else
+ dx=dx+wn
+ end
+ if dx~=0 then
+ cx[n]=dx
+ rl[n]=rlmode
+ end
+ dy=-dy
+ maxt=maxt+1
+ t[maxt]=p
+ d[maxt]=dy
+ else
+ maxt=0
+ end
+ end
+ elseif maxt>0 then
+ local ny=n.yoffset
+ for i=maxt,1,-1 do
+ ny=ny+d[i]
+ local ti=t[i]
+ ti.yoffset=ti.yoffset+ny
+ end
+ maxt=0
+ end
+ if not n_cursbase and maxt>0 then
+ local ny=n.yoffset
+ for i=maxt,1,-1 do
+ ny=ny+d[i]
+ local ti=t[i]
+ ti.yoffset=ny
+ end
+ maxt=0
+ end
+ p_cursbase,p=n_cursbase,n
+ end
+ end
+ if maxt>0 then
+ local ny=n.yoffset
+ for i=maxt,1,-1 do
+ ny=ny+d[i]
+ local ti=t[i]
+ ti.yoffset=ny
+ end
+ maxt=0
+ end
+ if not keep then
+ cursives={}
+ end
+ end
+ if has_marks then
+ for i=1,nofvalid do
+ local p=valid[i]
+ local p_markbase=p[a_markbase]
+ if p_markbase then
+ local mrks=marks[p_markbase]
+ local nofmarks=#mrks
+ for n in traverse_id(glyph_code,p.next) do
+ local n_markmark=n[a_markmark]
+ if p_markbase==n_markmark then
+ local index=n[a_markdone] or 1
+ local d=mrks[index]
+ if d then
+ local rlmode=d[3]
+ local k=wx[p]
+ if k then
+ local x=k[2]
+ local w=k[4]
+ if w then
+ if rlmode and rlmode>=0 then
+ n.xoffset=p.xoffset-p.width+d[1]-(w-x)
+ else
+ n.xoffset=p.xoffset-d[1]-x
+ end
+ else
+ if rlmode and rlmode>=0 then
+ n.xoffset=p.xoffset-p.width+d[1]
+ else
+ n.xoffset=p.xoffset-d[1]-x
+ end
+ end
+ else
+ if rlmode and rlmode>=0 then
+ n.xoffset=p.xoffset-p.width+d[1]
+ else
+ n.xoffset=p.xoffset-d[1]
+ end
+ local w=n.width
+ if w~=0 then
+ insert_node_before(head,n,newkern(-w/2))
+ insert_node_after(head,n,newkern(-w/2))
+ end
+ end
+ if mk[p] then
+ n.yoffset=p.yoffset+d[2]
+ else
+ n.yoffset=n.yoffset+p.yoffset+d[2]
+ end
+ if nofmarks==1 then
+ break
+ else
+ nofmarks=nofmarks-1
+ end
+ end
+ else
+ end
+ end
+ end
+ end
+ if not keep then
+ marks={}
+ end
+ end
+ if next(wx) then
+ for n,k in next,wx do
+ local x=k[2]
+ local w=k[4]
+ if w then
+ local rl=k[1]
+ local wx=w-x
+ if rl<0 then
+ if wx~=0 then
+ insert_node_before(head,n,newkern(wx))
+ end
+ if x~=0 then
+ insert_node_after (head,n,newkern(x))
+ end
+ else
+ if x~=0 then
+ insert_node_before(head,n,newkern(x))
+ end
+ if wx~=0 then
+ insert_node_after (head,n,newkern(wx))
+ end
+ end
+ elseif x~=0 then
+ insert_node_before(head,n,newkern(x))
+ end
+ end
+ end
+ if next(cx) then
+ for n,k in next,cx do
+ if k~=0 then
+ local rln=rl[n]
+ if rln and rln<0 then
+ insert_node_before(head,n,newkern(-k))
+ else
+ insert_node_before(head,n,newkern(k))
+ end
+ end
+ end
+ end
+ if not keep then
+ kerns={}
+ end
+ return head,true
+ elseif not keep then
+ kerns,cursives,marks={},{},{}
+ end
+ elseif has_kerns then
+ if trace_injections then
+ trace(head)
+ end
+ for n in traverse_id(glyph_code,head) do
+ if n.subtype<256 then
+ local k=n[a_kernpair]
+ if k then
+ local kk=kerns[k]
+ if kk then
+ local rl,x,y,w=kk[1],kk[2] or 0,kk[3],kk[4]
+ if y and y~=0 then
+ n.yoffset=y
+ end
+ if w then
+ local wx=w-x
+ if rl<0 then
+ if wx~=0 then
+ insert_node_before(head,n,newkern(wx))
+ end
+ if x~=0 then
+ insert_node_after (head,n,newkern(x))
+ end
+ else
+ if x~=0 then
+ insert_node_before(head,n,newkern(x))
+ end
+ if wx~=0 then
+ insert_node_after(head,n,newkern(wx))
+ end
+ end
+ else
+ if x~=0 then
+ insert_node_before(head,n,newkern(x))
+ end
+ end
+ end
+ end
+ end
+ end
+ if not keep then
+ kerns={}
+ end
+ return head,true
+ else
+ end
+ return head,false
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-ota']={
+ version=1.001,
+ comment="companion to font-otf.lua (analysing)",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local type=type
+if not trackers then trackers={ register=function() end } end
+local fonts,nodes,node=fonts,nodes,node
+local allocate=utilities.storage.allocate
+local otf=fonts.handlers.otf
+local analyzers=fonts.analyzers
+local initializers=allocate()
+local methods=allocate()
+analyzers.initializers=initializers
+analyzers.methods=methods
+analyzers.useunicodemarks=false
+local a_state=attributes.private('state')
+local nodecodes=nodes.nodecodes
+local glyph_code=nodecodes.glyph
+local disc_code=nodecodes.disc
+local math_code=nodecodes.math
+local traverse_id=node.traverse_id
+local traverse_node_list=node.traverse
+local end_of_math=node.end_of_math
+local fontdata=fonts.hashes.identifiers
+local categories=characters and characters.categories or {}
+local otffeatures=fonts.constructors.newfeatures("otf")
+local registerotffeature=otffeatures.register
+local s_init=1 local s_rphf=7
+local s_medi=2 local s_half=8
+local s_fina=3 local s_pref=9
+local s_isol=4 local s_blwf=10
+local s_mark=5 local s_pstf=11
+local s_rest=6
+local states={
+ init=s_init,
+ medi=s_medi,
+ fina=s_fina,
+ isol=s_isol,
+ mark=s_mark,
+ rest=s_rest,
+ rphf=s_rphf,
+ half=s_half,
+ pref=s_pref,
+ blwf=s_blwf,
+ pstf=s_pstf,
+}
+local features={
+ init=s_init,
+ medi=s_medi,
+ fina=s_fina,
+ isol=s_isol,
+ rphf=s_rphf,
+ half=s_half,
+ pref=s_pref,
+ blwf=s_blwf,
+ pstf=s_pstf,
+}
+analyzers.states=states
+analyzers.features=features
+function analyzers.setstate(head,font)
+ local useunicodemarks=analyzers.useunicodemarks
+ local tfmdata=fontdata[font]
+ local descriptions=tfmdata.descriptions
+ local first,last,current,n,done=nil,nil,head,0,false
+ while current do
+ local id=current.id
+ if id==glyph_code and current.font==font then
+ done=true
+ local char=current.char
+ local d=descriptions[char]
+ if d then
+ if d.class=="mark" or (useunicodemarks and categories[char]=="mn") then
+ done=true
+ current[a_state]=s_mark
+ elseif n==0 then
+ first,last,n=current,current,1
+ current[a_state]=s_init
+ else
+ last,n=current,n+1
+ current[a_state]=s_medi
+ end
+ else
+ if first and first==last then
+ last[a_state]=s_isol
+ elseif last then
+ last[a_state]=s_fina
+ end
+ first,last,n=nil,nil,0
+ end
+ elseif id==disc_code then
+ current[a_state]=s_medi
+ last=current
+ else
+ if first and first==last then
+ last[a_state]=s_isol
+ elseif last then
+ last[a_state]=s_fina
+ end
+ first,last,n=nil,nil,0
+ if id==math_code then
+ current=end_of_math(current)
+ end
+ end
+ current=current.next
+ end
+ if first and first==last then
+ last[a_state]=s_isol
+ elseif last then
+ last[a_state]=s_fina
+ end
+ return head,done
+end
+local function analyzeinitializer(tfmdata,value)
+ local script,language=otf.scriptandlanguage(tfmdata)
+ local action=initializers[script]
+ if not action then
+ elseif type(action)=="function" then
+ return action(tfmdata,value)
+ else
+ local action=action[language]
+ if action then
+ return action(tfmdata,value)
+ end
+ end
+end
+local function analyzeprocessor(head,font,attr)
+ local tfmdata=fontdata[font]
+ local script,language=otf.scriptandlanguage(tfmdata,attr)
+ local action=methods[script]
+ if not action then
+ elseif type(action)=="function" then
+ return action(head,font,attr)
+ else
+ action=action[language]
+ if action then
+ return action(head,font,attr)
+ end
+ end
+ return head,false
+end
+registerotffeature {
+ name="analyze",
+ description="analysis of character classes",
+ default=true,
+ initializers={
+ node=analyzeinitializer,
+ },
+ processors={
+ position=1,
+ node=analyzeprocessor,
+ }
+}
+methods.latn=analyzers.setstate
+local tatweel=0x0640
+local zwnj=0x200C
+local zwj=0x200D
+local isolated={
+ [0x0600]=true,[0x0601]=true,[0x0602]=true,[0x0603]=true,
+ [0x0604]=true,
+ [0x0608]=true,[0x060B]=true,[0x0621]=true,[0x0674]=true,
+ [0x06DD]=true,
+ [0x0856]=true,[0x0858]=true,[0x0857]=true,
+ [0x07FA]=true,
+ [zwnj]=true,
+ [0x08AD]=true,
+}
+local final={
+ [0x0622]=true,[0x0623]=true,[0x0624]=true,[0x0625]=true,
+ [0x0627]=true,[0x0629]=true,[0x062F]=true,[0x0630]=true,
+ [0x0631]=true,[0x0632]=true,[0x0648]=true,[0x0671]=true,
+ [0x0672]=true,[0x0673]=true,[0x0675]=true,[0x0676]=true,
+ [0x0677]=true,[0x0688]=true,[0x0689]=true,[0x068A]=true,
+ [0x068B]=true,[0x068C]=true,[0x068D]=true,[0x068E]=true,
+ [0x068F]=true,[0x0690]=true,[0x0691]=true,[0x0692]=true,
+ [0x0693]=true,[0x0694]=true,[0x0695]=true,[0x0696]=true,
+ [0x0697]=true,[0x0698]=true,[0x0699]=true,[0x06C0]=true,
+ [0x06C3]=true,[0x06C4]=true,[0x06C5]=true,[0x06C6]=true,
+ [0x06C7]=true,[0x06C8]=true,[0x06C9]=true,[0x06CA]=true,
+ [0x06CB]=true,[0x06CD]=true,[0x06CF]=true,[0x06D2]=true,
+ [0x06D3]=true,[0x06D5]=true,[0x06EE]=true,[0x06EF]=true,
+ [0x0759]=true,[0x075A]=true,[0x075B]=true,[0x076B]=true,
+ [0x076C]=true,[0x0771]=true,[0x0773]=true,[0x0774]=true,
+ [0x0778]=true,[0x0779]=true,
+ [0x08AA]=true,[0x08AB]=true,[0x08AC]=true,
+ [0xFEF5]=true,[0xFEF7]=true,[0xFEF9]=true,[0xFEFB]=true,
+ [0x0710]=true,[0x0715]=true,[0x0716]=true,[0x0717]=true,
+ [0x0718]=true,[0x0719]=true,[0x0728]=true,[0x072A]=true,
+ [0x072C]=true,[0x071E]=true,
+ [0x072F]=true,[0x074D]=true,
+ [0x0840]=true,[0x0849]=true,[0x0854]=true,[0x0846]=true,
+ [0x084F]=true,
+ [0x08AE]=true,[0x08B1]=true,[0x08B2]=true,
+}
+local medial={
+ [0x0626]=true,[0x0628]=true,[0x062A]=true,[0x062B]=true,
+ [0x062C]=true,[0x062D]=true,[0x062E]=true,[0x0633]=true,
+ [0x0634]=true,[0x0635]=true,[0x0636]=true,[0x0637]=true,
+ [0x0638]=true,[0x0639]=true,[0x063A]=true,[0x063B]=true,
+ [0x063C]=true,[0x063D]=true,[0x063E]=true,[0x063F]=true,
+ [0x0641]=true,[0x0642]=true,[0x0643]=true,
+ [0x0644]=true,[0x0645]=true,[0x0646]=true,[0x0647]=true,
+ [0x0649]=true,[0x064A]=true,[0x066E]=true,[0x066F]=true,
+ [0x0678]=true,[0x0679]=true,[0x067A]=true,[0x067B]=true,
+ [0x067C]=true,[0x067D]=true,[0x067E]=true,[0x067F]=true,
+ [0x0680]=true,[0x0681]=true,[0x0682]=true,[0x0683]=true,
+ [0x0684]=true,[0x0685]=true,[0x0686]=true,[0x0687]=true,
+ [0x069A]=true,[0x069B]=true,[0x069C]=true,[0x069D]=true,
+ [0x069E]=true,[0x069F]=true,[0x06A0]=true,[0x06A1]=true,
+ [0x06A2]=true,[0x06A3]=true,[0x06A4]=true,[0x06A5]=true,
+ [0x06A6]=true,[0x06A7]=true,[0x06A8]=true,[0x06A9]=true,
+ [0x06AA]=true,[0x06AB]=true,[0x06AC]=true,[0x06AD]=true,
+ [0x06AE]=true,[0x06AF]=true,[0x06B0]=true,[0x06B1]=true,
+ [0x06B2]=true,[0x06B3]=true,[0x06B4]=true,[0x06B5]=true,
+ [0x06B6]=true,[0x06B7]=true,[0x06B8]=true,[0x06B9]=true,
+ [0x06BA]=true,[0x06BB]=true,[0x06BC]=true,[0x06BD]=true,
+ [0x06BE]=true,[0x06BF]=true,[0x06C1]=true,[0x06C2]=true,
+ [0x06CC]=true,[0x06CE]=true,[0x06D0]=true,[0x06D1]=true,
+ [0x06FA]=true,[0x06FB]=true,[0x06FC]=true,[0x06FF]=true,
+ [0x0750]=true,[0x0751]=true,[0x0752]=true,[0x0753]=true,
+ [0x0754]=true,[0x0755]=true,[0x0756]=true,[0x0757]=true,
+ [0x0758]=true,[0x075C]=true,[0x075D]=true,[0x075E]=true,
+ [0x075F]=true,[0x0760]=true,[0x0761]=true,[0x0762]=true,
+ [0x0763]=true,[0x0764]=true,[0x0765]=true,[0x0766]=true,
+ [0x0767]=true,[0x0768]=true,[0x0769]=true,[0x076A]=true,
+ [0x076D]=true,[0x076E]=true,[0x076F]=true,[0x0770]=true,
+ [0x0772]=true,[0x0775]=true,[0x0776]=true,[0x0777]=true,
+ [0x077A]=true,[0x077B]=true,[0x077C]=true,[0x077D]=true,
+ [0x077E]=true,[0x077F]=true,
+ [0x08A0]=true,[0x08A2]=true,[0x08A4]=true,[0x08A5]=true,
+ [0x08A6]=true,[0x0620]=true,[0x08A8]=true,[0x08A9]=true,
+ [0x08A7]=true,[0x08A3]=true,
+ [0x0712]=true,[0x0713]=true,[0x0714]=true,[0x071A]=true,
+ [0x071B]=true,[0x071C]=true,[0x071D]=true,[0x071F]=true,
+ [0x0720]=true,[0x0721]=true,[0x0722]=true,[0x0723]=true,
+ [0x0724]=true,[0x0725]=true,[0x0726]=true,[0x0727]=true,
+ [0x0729]=true,[0x072B]=true,[0x072D]=true,[0x072E]=true,
+ [0x074E]=true,[0x074F]=true,
+ [0x0841]=true,[0x0842]=true,[0x0843]=true,[0x0844]=true,
+ [0x0845]=true,[0x0847]=true,[0x0848]=true,[0x0855]=true,
+ [0x0851]=true,[0x084E]=true,[0x084D]=true,[0x084A]=true,
+ [0x084B]=true,[0x084C]=true,[0x0850]=true,[0x0852]=true,
+ [0x0853]=true,
+ [0x07D7]=true,[0x07E8]=true,[0x07D9]=true,[0x07EA]=true,
+ [0x07CA]=true,[0x07DB]=true,[0x07CC]=true,[0x07DD]=true,
+ [0x07CE]=true,[0x07DF]=true,[0x07D4]=true,[0x07E5]=true,
+ [0x07E9]=true,[0x07E7]=true,[0x07E3]=true,[0x07E2]=true,
+ [0x07E0]=true,[0x07E1]=true,[0x07DE]=true,[0x07DC]=true,
+ [0x07D1]=true,[0x07DA]=true,[0x07D8]=true,[0x07D6]=true,
+ [0x07D2]=true,[0x07D0]=true,[0x07CF]=true,[0x07CD]=true,
+ [0x07CB]=true,[0x07D3]=true,[0x07E4]=true,[0x07D5]=true,
+ [0x07E6]=true,
+ [tatweel]=true,[zwj]=true,
+ [0x08A1]=true,[0x08AF]=true,[0x08B0]=true,
+}
+local arab_warned={}
+local function warning(current,what)
+ local char=current.char
+ if not arab_warned[char] then
+ log.report("analyze","arab: character %C has no %a class",char,what)
+ arab_warned[char]=true
+ end
+end
+local function finish(first,last)
+ if last then
+ if first==last then
+ local fc=first.char
+ if medial[fc] or final[fc] then
+ first[a_state]=s_isol
+ else
+ warning(first,"isol")
+ first[a_state]=s_error
+ end
+ else
+ local lc=last.char
+ if medial[lc] or final[lc] then
+ last[a_state]=s_fina
+ else
+ warning(last,"fina")
+ last[a_state]=s_error
+ end
+ end
+ first,last=nil,nil
+ elseif first then
+ local fc=first.char
+ if medial[fc] or final[fc] then
+ first[a_state]=s_isol
+ else
+ warning(first,"isol")
+ first[a_state]=s_error
+ end
+ first=nil
+ end
+ return first,last
+end
+function methods.arab(head,font,attr)
+ local useunicodemarks=analyzers.useunicodemarks
+ local tfmdata=fontdata[font]
+ local marks=tfmdata.resources.marks
+ local first,last,current,done=nil,nil,head,false
+ while current do
+ local id=current.id
+ if id==glyph_code and current.font==font and current.subtype<256 and not current[a_state] then
+ done=true
+ local char=current.char
+ if marks[char] or (useunicodemarks and categories[char]=="mn") then
+ current[a_state]=s_mark
+ elseif isolated[char] then
+ first,last=finish(first,last)
+ current[a_state]=s_isol
+ first,last=nil,nil
+ elseif not first then
+ if medial[char] then
+ current[a_state]=s_init
+ first,last=first or current,current
+ elseif final[char] then
+ current[a_state]=s_isol
+ first,last=nil,nil
+ else
+ first,last=finish(first,last)
+ end
+ elseif medial[char] then
+ first,last=first or current,current
+ current[a_state]=s_medi
+ elseif final[char] then
+ if not last[a_state]==s_init then
+ last[a_state]=s_medi
+ end
+ current[a_state]=s_fina
+ first,last=nil,nil
+ elseif char>=0x0600 and char<=0x06FF then
+ current[a_state]=s_rest
+ first,last=finish(first,last)
+ else
+ first,last=finish(first,last)
+ end
+ else
+ if first or last then
+ first,last=finish(first,last)
+ end
+ if id==math_code then
+ current=end_of_math(current)
+ end
+ end
+ current=current.next
+ end
+ if first or last then
+ finish(first,last)
+ end
+ return head,done
+end
+methods.syrc=methods.arab
+methods.mand=methods.arab
+methods.nko=methods.arab
+directives.register("otf.analyze.useunicodemarks",function(v)
+ analyzers.useunicodemarks=v
+end)
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-otn']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files",
+}
+local concat,insert,remove=table.concat,table.insert,table.remove
+local gmatch,gsub,find,match,lower,strip=string.gmatch,string.gsub,string.find,string.match,string.lower,string.strip
+local type,next,tonumber,tostring=type,next,tonumber,tostring
+local lpegmatch=lpeg.match
+local random=math.random
+local formatters=string.formatters
+local logs,trackers,nodes,attributes=logs,trackers,nodes,attributes
+local registertracker=trackers.register
+local fonts=fonts
+local otf=fonts.handlers.otf
+local trace_lookups=false registertracker("otf.lookups",function(v) trace_lookups=v end)
+local trace_singles=false registertracker("otf.singles",function(v) trace_singles=v end)
+local trace_multiples=false registertracker("otf.multiples",function(v) trace_multiples=v end)
+local trace_alternatives=false registertracker("otf.alternatives",function(v) trace_alternatives=v end)
+local trace_ligatures=false registertracker("otf.ligatures",function(v) trace_ligatures=v end)
+local trace_contexts=false registertracker("otf.contexts",function(v) trace_contexts=v end)
+local trace_marks=false registertracker("otf.marks",function(v) trace_marks=v end)
+local trace_kerns=false registertracker("otf.kerns",function(v) trace_kerns=v end)
+local trace_cursive=false registertracker("otf.cursive",function(v) trace_cursive=v end)
+local trace_preparing=false registertracker("otf.preparing",function(v) trace_preparing=v end)
+local trace_bugs=false registertracker("otf.bugs",function(v) trace_bugs=v end)
+local trace_details=false registertracker("otf.details",function(v) trace_details=v end)
+local trace_applied=false registertracker("otf.applied",function(v) trace_applied=v end)
+local trace_steps=false registertracker("otf.steps",function(v) trace_steps=v end)
+local trace_skips=false registertracker("otf.skips",function(v) trace_skips=v end)
+local trace_directions=false registertracker("otf.directions",function(v) trace_directions=v end)
+local report_direct=logs.reporter("fonts","otf direct")
+local report_subchain=logs.reporter("fonts","otf subchain")
+local report_chain=logs.reporter("fonts","otf chain")
+local report_process=logs.reporter("fonts","otf process")
+local report_prepare=logs.reporter("fonts","otf prepare")
+local report_warning=logs.reporter("fonts","otf warning")
+registertracker("otf.verbose_chain",function(v) otf.setcontextchain(v and "verbose") end)
+registertracker("otf.normal_chain",function(v) otf.setcontextchain(v and "normal") end)
+registertracker("otf.replacements","otf.singles,otf.multiples,otf.alternatives,otf.ligatures")
+registertracker("otf.positions","otf.marks,otf.kerns,otf.cursive")
+registertracker("otf.actions","otf.replacements,otf.positions")
+registertracker("otf.injections","nodes.injections")
+registertracker("*otf.sample","otf.steps,otf.actions,otf.analyzing")
+local insert_node_after=node.insert_after
+local delete_node=nodes.delete
+local copy_node=node.copy
+local find_node_tail=node.tail or node.slide
+local flush_node_list=node.flush_list
+local end_of_math=node.end_of_math
+local setmetatableindex=table.setmetatableindex
+local zwnj=0x200C
+local zwj=0x200D
+local wildcard="*"
+local default="dflt"
+local nodecodes=nodes.nodecodes
+local whatcodes=nodes.whatcodes
+local glyphcodes=nodes.glyphcodes
+local disccodes=nodes.disccodes
+local glyph_code=nodecodes.glyph
+local glue_code=nodecodes.glue
+local disc_code=nodecodes.disc
+local whatsit_code=nodecodes.whatsit
+local math_code=nodecodes.math
+local dir_code=whatcodes.dir
+local localpar_code=whatcodes.localpar
+local discretionary_code=disccodes.discretionary
+local ligature_code=glyphcodes.ligature
+local privateattribute=attributes.private
+local a_state=privateattribute('state')
+local a_markbase=privateattribute('markbase')
+local a_markmark=privateattribute('markmark')
+local a_markdone=privateattribute('markdone')
+local a_cursbase=privateattribute('cursbase')
+local a_curscurs=privateattribute('curscurs')
+local a_cursdone=privateattribute('cursdone')
+local a_kernpair=privateattribute('kernpair')
+local a_ligacomp=privateattribute('ligacomp')
+local injections=nodes.injections
+local setmark=injections.setmark
+local setcursive=injections.setcursive
+local setkern=injections.setkern
+local setpair=injections.setpair
+local markonce=true
+local cursonce=true
+local kernonce=true
+local fonthashes=fonts.hashes
+local fontdata=fonthashes.identifiers
+local otffeatures=fonts.constructors.newfeatures("otf")
+local registerotffeature=otffeatures.register
+local onetimemessage=fonts.loggers.onetimemessage or function() end
+otf.defaultnodealternate="none"
+local tfmdata=false
+local characters=false
+local descriptions=false
+local resources=false
+local marks=false
+local currentfont=false
+local lookuptable=false
+local anchorlookups=false
+local lookuptypes=false
+local handlers={}
+local rlmode=0
+local featurevalue=false
+local checkstep=(nodes and nodes.tracers and nodes.tracers.steppers.check) or function() end
+local registerstep=(nodes and nodes.tracers and nodes.tracers.steppers.register) or function() end
+local registermessage=(nodes and nodes.tracers and nodes.tracers.steppers.message) or function() end
+local function logprocess(...)
+ if trace_steps then
+ registermessage(...)
+ end
+ report_direct(...)
+end
+local function logwarning(...)
+ report_direct(...)
+end
+local f_unicode=formatters["%U"]
+local f_uniname=formatters["%U (%s)"]
+local f_unilist=formatters["% t (% t)"]
+local function gref(n)
+ if type(n)=="number" then
+ local description=descriptions[n]
+ local name=description and description.name
+ if name then
+ return f_uniname(n,name)
+ else
+ return f_unicode(n)
+ end
+ elseif n then
+ local num,nam={},{}
+ for i=1,#n do
+ local ni=n[i]
+ if tonumber(ni) then
+ local di=descriptions[ni]
+ num[i]=f_unicode(ni)
+ nam[i]=di and di.name or "-"
+ end
+ end
+ return f_unilist(num,nam)
+ else
+ return "<error in node mode tracing>"
+ end
+end
+local function cref(kind,chainname,chainlookupname,lookupname,index)
+ if index then
+ return formatters["feature %a, chain %a, sub %a, lookup %a, index %a"](kind,chainname,chainlookupname,lookupname,index)
+ elseif lookupname then
+ return formatters["feature %a, chain %a, sub %a, lookup %a"](kind,chainname,chainlookupname,lookupname)
+ elseif chainlookupname then
+ return formatters["feature %a, chain %a, sub %a"](kind,chainname,chainlookupname)
+ elseif chainname then
+ return formatters["feature %a, chain %a"](kind,chainname)
+ else
+ return formatters["feature %a"](kind)
+ end
+end
+local function pref(kind,lookupname)
+ return formatters["feature %a, lookup %a"](kind,lookupname)
+end
+local function copy_glyph(g)
+ local components=g.components
+ if components then
+ g.components=nil
+ local n=copy_node(g)
+ g.components=components
+ return n
+ else
+ return copy_node(g)
+ end
+end
+local function markstoligature(kind,lookupname,head,start,stop,char)
+ if start==stop and start.char==char then
+ return head,start
+ else
+ local prev=start.prev
+ local next=stop.next
+ start.prev=nil
+ stop.next=nil
+ local base=copy_glyph(start)
+ if head==start then
+ head=base
+ end
+ base.char=char
+ base.subtype=ligature_code
+ base.components=start
+ if prev then
+ prev.next=base
+ end
+ if next then
+ next.prev=base
+ end
+ base.next=next
+ base.prev=prev
+ return head,base
+ end
+end
+local function getcomponentindex(start)
+ if start.id~=glyph_code then
+ return 0
+ elseif start.subtype==ligature_code then
+ local i=0
+ local components=start.components
+ while components do
+ i=i+getcomponentindex(components)
+ components=components.next
+ end
+ return i
+ elseif not marks[start.char] then
+ return 1
+ else
+ return 0
+ end
+end
+local function toligature(kind,lookupname,head,start,stop,char,markflag,discfound)
+ if start==stop and start.char==char then
+ start.char=char
+ return head,start
+ end
+ local prev=start.prev
+ local next=stop.next
+ start.prev=nil
+ stop.next=nil
+ local base=copy_glyph(start)
+ if start==head then
+ head=base
+ end
+ base.char=char
+ base.subtype=ligature_code
+ base.components=start
+ if prev then
+ prev.next=base
+ end
+ if next then
+ next.prev=base
+ end
+ base.next=next
+ base.prev=prev
+ if not discfound then
+ local deletemarks=markflag~="mark"
+ local components=start
+ local baseindex=0
+ local componentindex=0
+ local head=base
+ local current=base
+ while start do
+ local char=start.char
+ if not marks[char] then
+ baseindex=baseindex+componentindex
+ componentindex=getcomponentindex(start)
+ elseif not deletemarks then
+ start[a_ligacomp]=baseindex+(start[a_ligacomp] or componentindex)
+ if trace_marks then
+ logwarning("%s: keep mark %s, gets index %s",pref(kind,lookupname),gref(char),start[a_ligacomp])
+ end
+ head,current=insert_node_after(head,current,copy_node(start))
+ elseif trace_marks then
+ logwarning("%s: delete mark %s",pref(kind,lookupname),gref(char))
+ end
+ start=start.next
+ end
+ local start=current.next
+ while start and start.id==glyph_code do
+ local char=start.char
+ if marks[char] then
+ start[a_ligacomp]=baseindex+(start[a_ligacomp] or componentindex)
+ if trace_marks then
+ logwarning("%s: set mark %s, gets index %s",pref(kind,lookupname),gref(char),start[a_ligacomp])
+ end
+ else
+ break
+ end
+ start=start.next
+ end
+ end
+ return head,base
+end
+function handlers.gsub_single(head,start,kind,lookupname,replacement)
+ if trace_singles then
+ logprocess("%s: replacing %s by single %s",pref(kind,lookupname),gref(start.char),gref(replacement))
+ end
+ start.char=replacement
+ return head,start,true
+end
+local function get_alternative_glyph(start,alternatives,value,trace_alternatives)
+ local n=#alternatives
+ if value=="random" then
+ local r=random(1,n)
+ return alternatives[r],trace_alternatives and formatters["value %a, taking %a"](value,r)
+ elseif value=="first" then
+ return alternatives[1],trace_alternatives and formatters["value %a, taking %a"](value,1)
+ elseif value=="last" then
+ return alternatives[n],trace_alternatives and formatters["value %a, taking %a"](value,n)
+ else
+ value=tonumber(value)
+ if type(value)~="number" then
+ return alternatives[1],trace_alternatives and formatters["invalid value %s, taking %a"](value,1)
+ elseif value>n then
+ local defaultalt=otf.defaultnodealternate
+ if defaultalt=="first" then
+ return alternatives[n],trace_alternatives and formatters["invalid value %s, taking %a"](value,1)
+ elseif defaultalt=="last" then
+ return alternatives[1],trace_alternatives and formatters["invalid value %s, taking %a"](value,n)
+ else
+ return false,trace_alternatives and formatters["invalid value %a, %s"](value,"out of range")
+ end
+ elseif value==0 then
+ return start.char,trace_alternatives and formatters["invalid value %a, %s"](value,"no change")
+ elseif value<1 then
+ return alternatives[1],trace_alternatives and formatters["invalid value %a, taking %a"](value,1)
+ else
+ return alternatives[value],trace_alternatives and formatters["value %a, taking %a"](value,value)
+ end
+ end
+end
+local function multiple_glyphs(head,start,multiple,ignoremarks)
+ local nofmultiples=#multiple
+ if nofmultiples>0 then
+ start.char=multiple[1]
+ if nofmultiples>1 then
+ local sn=start.next
+ for k=2,nofmultiples do
+ local n=copy_node(start)
+ n.char=multiple[k]
+ n.next=sn
+ n.prev=start
+ if sn then
+ sn.prev=n
+ end
+ start.next=n
+ start=n
+ end
+ end
+ return head,start,true
+ else
+ if trace_multiples then
+ logprocess("no multiple for %s",gref(start.char))
+ end
+ return head,start,false
+ end
+end
+function handlers.gsub_alternate(head,start,kind,lookupname,alternative,sequence)
+ local value=featurevalue==true and tfmdata.shared.features[kind] or featurevalue
+ local choice,comment=get_alternative_glyph(start,alternative,value,trace_alternatives)
+ if choice then
+ if trace_alternatives then
+ logprocess("%s: replacing %s by alternative %a to %s, %s",pref(kind,lookupname),gref(start.char),choice,gref(choice),comment)
+ end
+ start.char=choice
+ else
+ if trace_alternatives then
+ logwarning("%s: no variant %a for %s, %s",pref(kind,lookupname),value,gref(start.char),comment)
+ end
+ end
+ return head,start,true
+end
+function handlers.gsub_multiple(head,start,kind,lookupname,multiple,sequence)
+ if trace_multiples then
+ logprocess("%s: replacing %s by multiple %s",pref(kind,lookupname),gref(start.char),gref(multiple))
+ end
+ return multiple_glyphs(head,start,multiple,sequence.flags[1])
+end
+function handlers.gsub_ligature(head,start,kind,lookupname,ligature,sequence)
+ local s,stop,discfound=start.next,nil,false
+ local startchar=start.char
+ if marks[startchar] then
+ while s do
+ local id=s.id
+ if id==glyph_code and s.font==currentfont and s.subtype<256 then
+ local lg=ligature[s.char]
+ if lg then
+ stop=s
+ ligature=lg
+ s=s.next
+ else
+ break
+ end
+ else
+ break
+ end
+ end
+ if stop then
+ local lig=ligature.ligature
+ if lig then
+ if trace_ligatures then
+ local stopchar=stop.char
+ head,start=markstoligature(kind,lookupname,head,start,stop,lig)
+ logprocess("%s: replacing %s upto %s by ligature %s case 1",pref(kind,lookupname),gref(startchar),gref(stopchar),gref(start.char))
+ else
+ head,start=markstoligature(kind,lookupname,head,start,stop,lig)
+ end
+ return head,start,true
+ else
+ end
+ end
+ else
+ local skipmark=sequence.flags[1]
+ while s do
+ local id=s.id
+ if id==glyph_code and s.subtype<256 then
+ if s.font==currentfont then
+ local char=s.char
+ if skipmark and marks[char] then
+ s=s.next
+ else
+ local lg=ligature[char]
+ if lg then
+ stop=s
+ ligature=lg
+ s=s.next
+ else
+ break
+ end
+ end
+ else
+ break
+ end
+ elseif id==disc_code then
+ discfound=true
+ s=s.next
+ else
+ break
+ end
+ end
+ local lig=ligature.ligature
+ if lig then
+ if stop then
+ if trace_ligatures then
+ local stopchar=stop.char
+ head,start=toligature(kind,lookupname,head,start,stop,lig,skipmark,discfound)
+ logprocess("%s: replacing %s upto %s by ligature %s case 2",pref(kind,lookupname),gref(startchar),gref(stopchar),gref(start.char))
+ else
+ head,start=toligature(kind,lookupname,head,start,stop,lig,skipmark,discfound)
+ end
+ return head,start,true
+ else
+ start.char=lig
+ if trace_ligatures then
+ logprocess("%s: replacing %s by (no real) ligature %s case 3",pref(kind,lookupname),gref(startchar),gref(lig))
+ end
+ return head,start,true
+ end
+ else
+ end
+ end
+ return head,start,false
+end
+function handlers.gpos_mark2base(head,start,kind,lookupname,markanchors,sequence)
+ local markchar=start.char
+ if marks[markchar] then
+ local base=start.prev
+ if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then
+ local basechar=base.char
+ if marks[basechar] then
+ while true do
+ base=base.prev
+ if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then
+ basechar=base.char
+ if not marks[basechar] then
+ break
+ end
+ else
+ if trace_bugs then
+ logwarning("%s: no base for mark %s",pref(kind,lookupname),gref(markchar))
+ end
+ return head,start,false
+ end
+ end
+ end
+ local baseanchors=descriptions[basechar]
+ if baseanchors then
+ baseanchors=baseanchors.anchors
+ end
+ if baseanchors then
+ local baseanchors=baseanchors['basechar']
+ if baseanchors then
+ local al=anchorlookups[lookupname]
+ for anchor,ba in next,baseanchors do
+ if al[anchor] then
+ local ma=markanchors[anchor]
+ if ma then
+ local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma)
+ if trace_marks then
+ logprocess("%s, anchor %s, bound %s: anchoring mark %s to basechar %s => (%p,%p)",
+ pref(kind,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy)
+ end
+ return head,start,true
+ end
+ end
+ end
+ if trace_bugs then
+ logwarning("%s, no matching anchors for mark %s and base %s",pref(kind,lookupname),gref(markchar),gref(basechar))
+ end
+ end
+ elseif trace_bugs then
+ onetimemessage(currentfont,basechar,"no base anchors",report_fonts)
+ end
+ elseif trace_bugs then
+ logwarning("%s: prev node is no char",pref(kind,lookupname))
+ end
+ elseif trace_bugs then
+ logwarning("%s: mark %s is no mark",pref(kind,lookupname),gref(markchar))
+ end
+ return head,start,false
+end
+function handlers.gpos_mark2ligature(head,start,kind,lookupname,markanchors,sequence)
+ local markchar=start.char
+ if marks[markchar] then
+ local base=start.prev
+ if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then
+ local basechar=base.char
+ if marks[basechar] then
+ while true do
+ base=base.prev
+ if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then
+ basechar=base.char
+ if not marks[basechar] then
+ break
+ end
+ else
+ if trace_bugs then
+ logwarning("%s: no base for mark %s",pref(kind,lookupname),gref(markchar))
+ end
+ return head,start,false
+ end
+ end
+ end
+ local index=start[a_ligacomp]
+ local baseanchors=descriptions[basechar]
+ if baseanchors then
+ baseanchors=baseanchors.anchors
+ if baseanchors then
+ local baseanchors=baseanchors['baselig']
+ if baseanchors then
+ local al=anchorlookups[lookupname]
+ for anchor,ba in next,baseanchors do
+ if al[anchor] then
+ local ma=markanchors[anchor]
+ if ma then
+ ba=ba[index]
+ if ba then
+ local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma)
+ if trace_marks then
+ logprocess("%s, anchor %s, index %s, bound %s: anchoring mark %s to baselig %s at index %s => (%p,%p)",
+ pref(kind,lookupname),anchor,index,bound,gref(markchar),gref(basechar),index,dx,dy)
+ end
+ return head,start,true
+ else
+ if trace_bugs then
+ logwarning("%s: no matching anchors for mark %s and baselig %s with index %a",pref(kind,lookupname),gref(markchar),gref(basechar),index)
+ end
+ end
+ end
+ end
+ end
+ if trace_bugs then
+ logwarning("%s: no matching anchors for mark %s and baselig %s",pref(kind,lookupname),gref(markchar),gref(basechar))
+ end
+ end
+ end
+ elseif trace_bugs then
+ onetimemessage(currentfont,basechar,"no base anchors",report_fonts)
+ end
+ elseif trace_bugs then
+ logwarning("%s: prev node is no char",pref(kind,lookupname))
+ end
+ elseif trace_bugs then
+ logwarning("%s: mark %s is no mark",pref(kind,lookupname),gref(markchar))
+ end
+ return head,start,false
+end
+function handlers.gpos_mark2mark(head,start,kind,lookupname,markanchors,sequence)
+ local markchar=start.char
+ if marks[markchar] then
+ local base=start.prev
+ local slc=start[a_ligacomp]
+ if slc then
+ while base do
+ local blc=base[a_ligacomp]
+ if blc and blc~=slc then
+ base=base.prev
+ else
+ break
+ end
+ end
+ end
+ if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then
+ local basechar=base.char
+ local baseanchors=descriptions[basechar]
+ if baseanchors then
+ baseanchors=baseanchors.anchors
+ if baseanchors then
+ baseanchors=baseanchors['basemark']
+ if baseanchors then
+ local al=anchorlookups[lookupname]
+ for anchor,ba in next,baseanchors do
+ if al[anchor] then
+ local ma=markanchors[anchor]
+ if ma then
+ local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma,true)
+ if trace_marks then
+ logprocess("%s, anchor %s, bound %s: anchoring mark %s to basemark %s => (%p,%p)",
+ pref(kind,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy)
+ end
+ return head,start,true
+ end
+ end
+ end
+ if trace_bugs then
+ logwarning("%s: no matching anchors for mark %s and basemark %s",pref(kind,lookupname),gref(markchar),gref(basechar))
+ end
+ end
+ end
+ elseif trace_bugs then
+ onetimemessage(currentfont,basechar,"no base anchors",report_fonts)
+ end
+ elseif trace_bugs then
+ logwarning("%s: prev node is no mark",pref(kind,lookupname))
+ end
+ elseif trace_bugs then
+ logwarning("%s: mark %s is no mark",pref(kind,lookupname),gref(markchar))
+ end
+ return head,start,false
+end
+function handlers.gpos_cursive(head,start,kind,lookupname,exitanchors,sequence)
+ local alreadydone=cursonce and start[a_cursbase]
+ if not alreadydone then
+ local done=false
+ local startchar=start.char
+ if marks[startchar] then
+ if trace_cursive then
+ logprocess("%s: ignoring cursive for mark %s",pref(kind,lookupname),gref(startchar))
+ end
+ else
+ local nxt=start.next
+ while not done and nxt and nxt.id==glyph_code and nxt.font==currentfont and nxt.subtype<256 do
+ local nextchar=nxt.char
+ if marks[nextchar] then
+ nxt=nxt.next
+ else
+ local entryanchors=descriptions[nextchar]
+ if entryanchors then
+ entryanchors=entryanchors.anchors
+ if entryanchors then
+ entryanchors=entryanchors['centry']
+ if entryanchors then
+ local al=anchorlookups[lookupname]
+ for anchor,entry in next,entryanchors do
+ if al[anchor] then
+ local exit=exitanchors[anchor]
+ if exit then
+ local dx,dy,bound=setcursive(start,nxt,tfmdata.parameters.factor,rlmode,exit,entry,characters[startchar],characters[nextchar])
+ if trace_cursive then
+ logprocess("%s: moving %s to %s cursive (%p,%p) using anchor %s and bound %s in rlmode %s",pref(kind,lookupname),gref(startchar),gref(nextchar),dx,dy,anchor,bound,rlmode)
+ end
+ done=true
+ break
+ end
+ end
+ end
+ end
+ end
+ elseif trace_bugs then
+ onetimemessage(currentfont,startchar,"no entry anchors",report_fonts)
+ end
+ break
+ end
+ end
+ end
+ return head,start,done
+ else
+ if trace_cursive and trace_details then
+ logprocess("%s, cursive %s is already done",pref(kind,lookupname),gref(start.char),alreadydone)
+ end
+ return head,start,false
+ end
+end
+function handlers.gpos_single(head,start,kind,lookupname,kerns,sequence)
+ local startchar=start.char
+ local dx,dy,w,h=setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,characters[startchar])
+ if trace_kerns then
+ logprocess("%s: shifting single %s by (%p,%p) and correction (%p,%p)",pref(kind,lookupname),gref(startchar),dx,dy,w,h)
+ end
+ return head,start,false
+end
+function handlers.gpos_pair(head,start,kind,lookupname,kerns,sequence)
+ local snext=start.next
+ if not snext then
+ return head,start,false
+ else
+ local prev,done=start,false
+ local factor=tfmdata.parameters.factor
+ local lookuptype=lookuptypes[lookupname]
+ while snext and snext.id==glyph_code and snext.font==currentfont and snext.subtype<256 do
+ local nextchar=snext.char
+ local krn=kerns[nextchar]
+ if not krn and marks[nextchar] then
+ prev=snext
+ snext=snext.next
+ else
+ if not krn then
+ elseif type(krn)=="table" then
+ if lookuptype=="pair" then
+ local a,b=krn[2],krn[3]
+ if a and #a>0 then
+ local startchar=start.char
+ local x,y,w,h=setpair(start,factor,rlmode,sequence.flags[4],a,characters[startchar])
+ if trace_kerns then
+ logprocess("%s: shifting first of pair %s and %s by (%p,%p) and correction (%p,%p)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h)
+ end
+ end
+ if b and #b>0 then
+ local startchar=start.char
+ local x,y,w,h=setpair(snext,factor,rlmode,sequence.flags[4],b,characters[nextchar])
+ if trace_kerns then
+ logprocess("%s: shifting second of pair %s and %s by (%p,%p) and correction (%p,%p)",pref(kind,lookupname),gref(startchar),gref(nextchar),x,y,w,h)
+ end
+ end
+ else
+ report_process("%s: check this out (old kern stuff)",pref(kind,lookupname))
+ end
+ done=true
+ elseif krn~=0 then
+ local k=setkern(snext,factor,rlmode,krn)
+ if trace_kerns then
+ logprocess("%s: inserting kern %s between %s and %s",pref(kind,lookupname),k,gref(prev.char),gref(nextchar))
+ end
+ done=true
+ end
+ break
+ end
+ end
+ return head,start,done
+ end
+end
+local chainmores={}
+local chainprocs={}
+local function logprocess(...)
+ if trace_steps then
+ registermessage(...)
+ end
+ report_subchain(...)
+end
+local logwarning=report_subchain
+local function logprocess(...)
+ if trace_steps then
+ registermessage(...)
+ end
+ report_chain(...)
+end
+local logwarning=report_chain
+function chainprocs.chainsub(head,start,stop,kind,chainname,currentcontext,lookuphash,lookuplist,chainlookupname)
+ logwarning("%s: a direct call to chainsub cannot happen",cref(kind,chainname,chainlookupname))
+ return head,start,false
+end
+function chainmores.chainsub(head,start,stop,kind,chainname,currentcontext,lookuphash,lookuplist,chainlookupname,n)
+ logprocess("%s: a direct call to chainsub cannot happen",cref(kind,chainname,chainlookupname))
+ return head,start,false
+end
+function chainprocs.reversesub(head,start,stop,kind,chainname,currentcontext,lookuphash,replacements)
+ local char=start.char
+ local replacement=replacements[char]
+ if replacement then
+ if trace_singles then
+ logprocess("%s: single reverse replacement of %s by %s",cref(kind,chainname),gref(char),gref(replacement))
+ end
+ start.char=replacement
+ return head,start,true
+ else
+ return head,start,false
+ end
+end
+function chainprocs.gsub_single(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex)
+ local current=start
+ local subtables=currentlookup.subtables
+ if #subtables>1 then
+ logwarning("todo: check if we need to loop over the replacements: %s",concat(subtables," "))
+ end
+ while current do
+ if current.id==glyph_code then
+ local currentchar=current.char
+ local lookupname=subtables[1]
+ local replacement=lookuphash[lookupname]
+ if not replacement then
+ if trace_bugs then
+ logwarning("%s: no single hits",cref(kind,chainname,chainlookupname,lookupname,chainindex))
+ end
+ else
+ replacement=replacement[currentchar]
+ if not replacement or replacement=="" then
+ if trace_bugs then
+ logwarning("%s: no single for %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(currentchar))
+ end
+ else
+ if trace_singles then
+ logprocess("%s: replacing single %s by %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(currentchar),gref(replacement))
+ end
+ current.char=replacement
+ end
+ end
+ return head,start,true
+ elseif current==stop then
+ break
+ else
+ current=current.next
+ end
+ end
+ return head,start,false
+end
+chainmores.gsub_single=chainprocs.gsub_single
+function chainprocs.gsub_multiple(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname)
+ local startchar=start.char
+ local subtables=currentlookup.subtables
+ local lookupname=subtables[1]
+ local replacements=lookuphash[lookupname]
+ if not replacements then
+ if trace_bugs then
+ logwarning("%s: no multiple hits",cref(kind,chainname,chainlookupname,lookupname))
+ end
+ else
+ replacements=replacements[startchar]
+ if not replacements or replacement=="" then
+ if trace_bugs then
+ logwarning("%s: no multiple for %s",cref(kind,chainname,chainlookupname,lookupname),gref(startchar))
+ end
+ else
+ if trace_multiples then
+ logprocess("%s: replacing %s by multiple characters %s",cref(kind,chainname,chainlookupname,lookupname),gref(startchar),gref(replacements))
+ end
+ return multiple_glyphs(head,start,replacements,currentlookup.flags[1])
+ end
+ end
+ return head,start,false
+end
+chainmores.gsub_multiple=chainprocs.gsub_multiple
+function chainprocs.gsub_alternate(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname)
+ local current=start
+ local subtables=currentlookup.subtables
+ local value=featurevalue==true and tfmdata.shared.features[kind] or featurevalue
+ while current do
+ if current.id==glyph_code then
+ local currentchar=current.char
+ local lookupname=subtables[1]
+ local alternatives=lookuphash[lookupname]
+ if not alternatives then
+ if trace_bugs then
+ logwarning("%s: no alternative hit",cref(kind,chainname,chainlookupname,lookupname))
+ end
+ else
+ alternatives=alternatives[currentchar]
+ if alternatives then
+ local choice,comment=get_alternative_glyph(current,alternatives,value,trace_alternatives)
+ if choice then
+ if trace_alternatives then
+ logprocess("%s: replacing %s by alternative %a to %s, %s",cref(kind,chainname,chainlookupname,lookupname),gref(char),choice,gref(choice),comment)
+ end
+ start.char=choice
+ else
+ if trace_alternatives then
+ logwarning("%s: no variant %a for %s, %s",cref(kind,chainname,chainlookupname,lookupname),value,gref(char),comment)
+ end
+ end
+ elseif trace_bugs then
+ logwarning("%s: no alternative for %s, %s",cref(kind,chainname,chainlookupname,lookupname),gref(currentchar),comment)
+ end
+ end
+ return head,start,true
+ elseif current==stop then
+ break
+ else
+ current=current.next
+ end
+ end
+ return head,start,false
+end
+chainmores.gsub_alternate=chainprocs.gsub_alternate
+function chainprocs.gsub_ligature(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex)
+ local startchar=start.char
+ local subtables=currentlookup.subtables
+ local lookupname=subtables[1]
+ local ligatures=lookuphash[lookupname]
+ if not ligatures then
+ if trace_bugs then
+ logwarning("%s: no ligature hits",cref(kind,chainname,chainlookupname,lookupname,chainindex))
+ end
+ else
+ ligatures=ligatures[startchar]
+ if not ligatures then
+ if trace_bugs then
+ logwarning("%s: no ligatures starting with %s",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar))
+ end
+ else
+ local s=start.next
+ local discfound=false
+ local last=stop
+ local nofreplacements=0
+ local skipmark=currentlookup.flags[1]
+ while s do
+ local id=s.id
+ if id==disc_code then
+ s=s.next
+ discfound=true
+ else
+ local schar=s.char
+ if skipmark and marks[schar] then
+ s=s.next
+ else
+ local lg=ligatures[schar]
+ if lg then
+ ligatures,last,nofreplacements=lg,s,nofreplacements+1
+ if s==stop then
+ break
+ else
+ s=s.next
+ end
+ else
+ break
+ end
+ end
+ end
+ end
+ local l2=ligatures.ligature
+ if l2 then
+ if chainindex then
+ stop=last
+ end
+ if trace_ligatures then
+ if start==stop then
+ logprocess("%s: replacing character %s by ligature %s case 3",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar),gref(l2))
+ else
+ logprocess("%s: replacing character %s upto %s by ligature %s case 4",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar),gref(stop.char),gref(l2))
+ end
+ end
+ head,start=toligature(kind,lookupname,head,start,stop,l2,currentlookup.flags[1],discfound)
+ return head,start,true,nofreplacements
+ elseif trace_bugs then
+ if start==stop then
+ logwarning("%s: replacing character %s by ligature fails",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar))
+ else
+ logwarning("%s: replacing character %s upto %s by ligature fails",cref(kind,chainname,chainlookupname,lookupname,chainindex),gref(startchar),gref(stop.char))
+ end
+ end
+ end
+ end
+ return head,start,false,0
+end
+chainmores.gsub_ligature=chainprocs.gsub_ligature
+function chainprocs.gpos_mark2base(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname)
+ local markchar=start.char
+ if marks[markchar] then
+ local subtables=currentlookup.subtables
+ local lookupname=subtables[1]
+ local markanchors=lookuphash[lookupname]
+ if markanchors then
+ markanchors=markanchors[markchar]
+ end
+ if markanchors then
+ local base=start.prev
+ if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then
+ local basechar=base.char
+ if marks[basechar] then
+ while true do
+ base=base.prev
+ if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then
+ basechar=base.char
+ if not marks[basechar] then
+ break
+ end
+ else
+ if trace_bugs then
+ logwarning("%s: no base for mark %s",pref(kind,lookupname),gref(markchar))
+ end
+ return head,start,false
+ end
+ end
+ end
+ local baseanchors=descriptions[basechar].anchors
+ if baseanchors then
+ local baseanchors=baseanchors['basechar']
+ if baseanchors then
+ local al=anchorlookups[lookupname]
+ for anchor,ba in next,baseanchors do
+ if al[anchor] then
+ local ma=markanchors[anchor]
+ if ma then
+ local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma)
+ if trace_marks then
+ logprocess("%s, anchor %s, bound %s: anchoring mark %s to basechar %s => (%p,%p)",
+ cref(kind,chainname,chainlookupname,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy)
+ end
+ return head,start,true
+ end
+ end
+ end
+ if trace_bugs then
+ logwarning("%s, no matching anchors for mark %s and base %s",cref(kind,chainname,chainlookupname,lookupname),gref(markchar),gref(basechar))
+ end
+ end
+ end
+ elseif trace_bugs then
+ logwarning("%s: prev node is no char",cref(kind,chainname,chainlookupname,lookupname))
+ end
+ elseif trace_bugs then
+ logwarning("%s: mark %s has no anchors",cref(kind,chainname,chainlookupname,lookupname),gref(markchar))
+ end
+ elseif trace_bugs then
+ logwarning("%s: mark %s is no mark",cref(kind,chainname,chainlookupname),gref(markchar))
+ end
+ return head,start,false
+end
+function chainprocs.gpos_mark2ligature(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname)
+ local markchar=start.char
+ if marks[markchar] then
+ local subtables=currentlookup.subtables
+ local lookupname=subtables[1]
+ local markanchors=lookuphash[lookupname]
+ if markanchors then
+ markanchors=markanchors[markchar]
+ end
+ if markanchors then
+ local base=start.prev
+ if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then
+ local basechar=base.char
+ if marks[basechar] then
+ while true do
+ base=base.prev
+ if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then
+ basechar=base.char
+ if not marks[basechar] then
+ break
+ end
+ else
+ if trace_bugs then
+ logwarning("%s: no base for mark %s",cref(kind,chainname,chainlookupname,lookupname),markchar)
+ end
+ return head,start,false
+ end
+ end
+ end
+ local index=start[a_ligacomp]
+ local baseanchors=descriptions[basechar].anchors
+ if baseanchors then
+ local baseanchors=baseanchors['baselig']
+ if baseanchors then
+ local al=anchorlookups[lookupname]
+ for anchor,ba in next,baseanchors do
+ if al[anchor] then
+ local ma=markanchors[anchor]
+ if ma then
+ ba=ba[index]
+ if ba then
+ local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma)
+ if trace_marks then
+ logprocess("%s, anchor %s, bound %s: anchoring mark %s to baselig %s at index %s => (%p,%p)",
+ cref(kind,chainname,chainlookupname,lookupname),anchor,a or bound,gref(markchar),gref(basechar),index,dx,dy)
+ end
+ return head,start,true
+ end
+ end
+ end
+ end
+ if trace_bugs then
+ logwarning("%s: no matching anchors for mark %s and baselig %s",cref(kind,chainname,chainlookupname,lookupname),gref(markchar),gref(basechar))
+ end
+ end
+ end
+ elseif trace_bugs then
+ logwarning("feature %s, lookup %s: prev node is no char",kind,lookupname)
+ end
+ elseif trace_bugs then
+ logwarning("%s: mark %s has no anchors",cref(kind,chainname,chainlookupname,lookupname),gref(markchar))
+ end
+ elseif trace_bugs then
+ logwarning("%s: mark %s is no mark",cref(kind,chainname,chainlookupname),gref(markchar))
+ end
+ return head,start,false
+end
+function chainprocs.gpos_mark2mark(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname)
+ local markchar=start.char
+ if marks[markchar] then
+ local subtables=currentlookup.subtables
+ local lookupname=subtables[1]
+ local markanchors=lookuphash[lookupname]
+ if markanchors then
+ markanchors=markanchors[markchar]
+ end
+ if markanchors then
+ local base=start.prev
+ local slc=start[a_ligacomp]
+ if slc then
+ while base do
+ local blc=base[a_ligacomp]
+ if blc and blc~=slc then
+ base=base.prev
+ else
+ break
+ end
+ end
+ end
+ if base and base.id==glyph_code and base.font==currentfont and base.subtype<256 then
+ local basechar=base.char
+ local baseanchors=descriptions[basechar].anchors
+ if baseanchors then
+ baseanchors=baseanchors['basemark']
+ if baseanchors then
+ local al=anchorlookups[lookupname]
+ for anchor,ba in next,baseanchors do
+ if al[anchor] then
+ local ma=markanchors[anchor]
+ if ma then
+ local dx,dy,bound=setmark(start,base,tfmdata.parameters.factor,rlmode,ba,ma,true)
+ if trace_marks then
+ logprocess("%s, anchor %s, bound %s: anchoring mark %s to basemark %s => (%p,%p)",
+ cref(kind,chainname,chainlookupname,lookupname),anchor,bound,gref(markchar),gref(basechar),dx,dy)
+ end
+ return head,start,true
+ end
+ end
+ end
+ if trace_bugs then
+ logwarning("%s: no matching anchors for mark %s and basemark %s",gref(kind,chainname,chainlookupname,lookupname),gref(markchar),gref(basechar))
+ end
+ end
+ end
+ elseif trace_bugs then
+ logwarning("%s: prev node is no mark",cref(kind,chainname,chainlookupname,lookupname))
+ end
+ elseif trace_bugs then
+ logwarning("%s: mark %s has no anchors",cref(kind,chainname,chainlookupname,lookupname),gref(markchar))
+ end
+ elseif trace_bugs then
+ logwarning("%s: mark %s is no mark",cref(kind,chainname,chainlookupname),gref(markchar))
+ end
+ return head,start,false
+end
+function chainprocs.gpos_cursive(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname)
+ local alreadydone=cursonce and start[a_cursbase]
+ if not alreadydone then
+ local startchar=start.char
+ local subtables=currentlookup.subtables
+ local lookupname=subtables[1]
+ local exitanchors=lookuphash[lookupname]
+ if exitanchors then
+ exitanchors=exitanchors[startchar]
+ end
+ if exitanchors then
+ local done=false
+ if marks[startchar] then
+ if trace_cursive then
+ logprocess("%s: ignoring cursive for mark %s",pref(kind,lookupname),gref(startchar))
+ end
+ else
+ local nxt=start.next
+ while not done and nxt and nxt.id==glyph_code and nxt.font==currentfont and nxt.subtype<256 do
+ local nextchar=nxt.char
+ if marks[nextchar] then
+ nxt=nxt.next
+ else
+ local entryanchors=descriptions[nextchar]
+ if entryanchors then
+ entryanchors=entryanchors.anchors
+ if entryanchors then
+ entryanchors=entryanchors['centry']
+ if entryanchors then
+ local al=anchorlookups[lookupname]
+ for anchor,entry in next,entryanchors do
+ if al[anchor] then
+ local exit=exitanchors[anchor]
+ if exit then
+ local dx,dy,bound=setcursive(start,nxt,tfmdata.parameters.factor,rlmode,exit,entry,characters[startchar],characters[nextchar])
+ if trace_cursive then
+ logprocess("%s: moving %s to %s cursive (%p,%p) using anchor %s and bound %s in rlmode %s",pref(kind,lookupname),gref(startchar),gref(nextchar),dx,dy,anchor,bound,rlmode)
+ end
+ done=true
+ break
+ end
+ end
+ end
+ end
+ end
+ elseif trace_bugs then
+ onetimemessage(currentfont,startchar,"no entry anchors",report_fonts)
+ end
+ break
+ end
+ end
+ end
+ return head,start,done
+ else
+ if trace_cursive and trace_details then
+ logprocess("%s, cursive %s is already done",pref(kind,lookupname),gref(start.char),alreadydone)
+ end
+ return head,start,false
+ end
+ end
+ return head,start,false
+end
+function chainprocs.gpos_single(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex,sequence)
+ local startchar=start.char
+ local subtables=currentlookup.subtables
+ local lookupname=subtables[1]
+ local kerns=lookuphash[lookupname]
+ if kerns then
+ kerns=kerns[startchar]
+ if kerns then
+ local dx,dy,w,h=setpair(start,tfmdata.parameters.factor,rlmode,sequence.flags[4],kerns,characters[startchar])
+ if trace_kerns then
+ logprocess("%s: shifting single %s by (%p,%p) and correction (%p,%p)",cref(kind,chainname,chainlookupname),gref(startchar),dx,dy,w,h)
+ end
+ end
+ end
+ return head,start,false
+end
+chainmores.gpos_single=chainprocs.gpos_single
+function chainprocs.gpos_pair(head,start,stop,kind,chainname,currentcontext,lookuphash,currentlookup,chainlookupname,chainindex,sequence)
+ local snext=start.next
+ if snext then
+ local startchar=start.char
+ local subtables=currentlookup.subtables
+ local lookupname=subtables[1]
+ local kerns=lookuphash[lookupname]
+ if kerns then
+ kerns=kerns[startchar]
+ if kerns then
+ local lookuptype=lookuptypes[lookupname]
+ local prev,done=start,false
+ local factor=tfmdata.parameters.factor
+ while snext and snext.id==glyph_code and snext.font==currentfont and snext.subtype<256 do
+ local nextchar=snext.char
+ local krn=kerns[nextchar]
+ if not krn and marks[nextchar] then
+ prev=snext
+ snext=snext.next
+ else
+ if not krn then
+ elseif type(krn)=="table" then
+ if lookuptype=="pair" then
+ local a,b=krn[2],krn[3]
+ if a and #a>0 then
+ local startchar=start.char
+ local x,y,w,h=setpair(start,factor,rlmode,sequence.flags[4],a,characters[startchar])
+ if trace_kerns then
+ logprocess("%s: shifting first of pair %s and %s by (%p,%p) and correction (%p,%p)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h)
+ end
+ end
+ if b and #b>0 then
+ local startchar=start.char
+ local x,y,w,h=setpair(snext,factor,rlmode,sequence.flags[4],b,characters[nextchar])
+ if trace_kerns then
+ logprocess("%s: shifting second of pair %s and %s by (%p,%p) and correction (%p,%p)",cref(kind,chainname,chainlookupname),gref(startchar),gref(nextchar),x,y,w,h)
+ end
+ end
+ else
+ report_process("%s: check this out (old kern stuff)",cref(kind,chainname,chainlookupname))
+ local a,b=krn[2],krn[6]
+ if a and a~=0 then
+ local k=setkern(snext,factor,rlmode,a)
+ if trace_kerns then
+ logprocess("%s: inserting first kern %s between %s and %s",cref(kind,chainname,chainlookupname),k,gref(prev.char),gref(nextchar))
+ end
+ end
+ if b and b~=0 then
+ logwarning("%s: ignoring second kern xoff %s",cref(kind,chainname,chainlookupname),b*factor)
+ end
+ end
+ done=true
+ elseif krn~=0 then
+ local k=setkern(snext,factor,rlmode,krn)
+ if trace_kerns then
+ logprocess("%s: inserting kern %s between %s and %s",cref(kind,chainname,chainlookupname),k,gref(prev.char),gref(nextchar))
+ end
+ done=true
+ end
+ break
+ end
+ end
+ return head,start,done
+ end
+ end
+ end
+ return head,start,false
+end
+chainmores.gpos_pair=chainprocs.gpos_pair
+local function show_skip(kind,chainname,char,ck,class)
+ if ck[9] then
+ logwarning("%s: skipping char %s, class %a, rule %a, lookuptype %a, %a => %a",cref(kind,chainname),gref(char),class,ck[1],ck[2],ck[9],ck[10])
+ else
+ logwarning("%s: skipping char %s, class %a, rule %a, lookuptype %a",cref(kind,chainname),gref(char),class,ck[1],ck[2])
+ end
+end
+local function normal_handle_contextchain(head,start,kind,chainname,contexts,sequence,lookuphash)
+ local flags=sequence.flags
+ local done=false
+ local skipmark=flags[1]
+ local skipligature=flags[2]
+ local skipbase=flags[3]
+ local someskip=skipmark or skipligature or skipbase
+ local markclass=sequence.markclass
+ local skipped=false
+ for k=1,#contexts do
+ local match=true
+ local current=start
+ local last=start
+ local ck=contexts[k]
+ local seq=ck[3]
+ local s=#seq
+ if s==1 then
+ match=current.id==glyph_code and current.font==currentfont and current.subtype<256 and seq[1][current.char]
+ else
+ local f,l=ck[4],ck[5]
+ if f==1 and f==l then
+ else
+ if f==l then
+ else
+ local n=f+1
+ last=last.next
+ while n<=l do
+ if last then
+ local id=last.id
+ if id==glyph_code then
+ if last.font==currentfont and last.subtype<256 then
+ local char=last.char
+ local ccd=descriptions[char]
+ if ccd then
+ local class=ccd.class
+ if class==skipmark or class==skipligature or class==skipbase or (markclass and class=="mark" and not markclass[char]) then
+ skipped=true
+ if trace_skips then
+ show_skip(kind,chainname,char,ck,class)
+ end
+ last=last.next
+ elseif seq[n][char] then
+ if n<l then
+ last=last.next
+ end
+ n=n+1
+ else
+ match=false
+ break
+ end
+ else
+ match=false
+ break
+ end
+ else
+ match=false
+ break
+ end
+ elseif id==disc_code then
+ last=last.next
+ else
+ match=false
+ break
+ end
+ else
+ match=false
+ break
+ end
+ end
+ end
+ end
+ if match and f>1 then
+ local prev=start.prev
+ if prev then
+ local n=f-1
+ while n>=1 do
+ if prev then
+ local id=prev.id
+ if id==glyph_code then
+ if prev.font==currentfont and prev.subtype<256 then
+ local char=prev.char
+ local ccd=descriptions[char]
+ if ccd then
+ local class=ccd.class
+ if class==skipmark or class==skipligature or class==skipbase or (markclass and class=="mark" and not markclass[char]) then
+ skipped=true
+ if trace_skips then
+ show_skip(kind,chainname,char,ck,class)
+ end
+ elseif seq[n][char] then
+ n=n -1
+ else
+ match=false
+ break
+ end
+ else
+ match=false
+ break
+ end
+ else
+ match=false
+ break
+ end
+ elseif id==disc_code then
+ elseif seq[n][32] then
+ n=n -1
+ else
+ match=false
+ break
+ end
+ prev=prev.prev
+ elseif seq[n][32] then
+ n=n -1
+ else
+ match=false
+ break
+ end
+ end
+ elseif f==2 then
+ match=seq[1][32]
+ else
+ for n=f-1,1 do
+ if not seq[n][32] then
+ match=false
+ break
+ end
+ end
+ end
+ end
+ if match and s>l then
+ local current=last and last.next
+ if current then
+ local n=l+1
+ while n<=s do
+ if current then
+ local id=current.id
+ if id==glyph_code then
+ if current.font==currentfont and current.subtype<256 then
+ local char=current.char
+ local ccd=descriptions[char]
+ if ccd then
+ local class=ccd.class
+ if class==skipmark or class==skipligature or class==skipbase or (markclass and class=="mark" and not markclass[char]) then
+ skipped=true
+ if trace_skips then
+ show_skip(kind,chainname,char,ck,class)
+ end
+ elseif seq[n][char] then
+ n=n+1
+ else
+ match=false
+ break
+ end
+ else
+ match=false
+ break
+ end
+ else
+ match=false
+ break
+ end
+ elseif id==disc_code then
+ elseif seq[n][32] then
+ n=n+1
+ else
+ match=false
+ break
+ end
+ current=current.next
+ elseif seq[n][32] then
+ n=n+1
+ else
+ match=false
+ break
+ end
+ end
+ elseif s-l==1 then
+ match=seq[s][32]
+ else
+ for n=l+1,s do
+ if not seq[n][32] then
+ match=false
+ break
+ end
+ end
+ end
+ end
+ end
+ if match then
+ if trace_contexts then
+ local rule,lookuptype,f,l=ck[1],ck[2],ck[4],ck[5]
+ local char=start.char
+ if ck[9] then
+ logwarning("%s: rule %s matches at char %s for (%s,%s,%s) chars, lookuptype %a, %a => %a",
+ cref(kind,chainname),rule,gref(char),f-1,l-f+1,s-l,lookuptype,ck[9],ck[10])
+ else
+ logwarning("%s: rule %s matches at char %s for (%s,%s,%s) chars, lookuptype %a",
+ cref(kind,chainname),rule,gref(char),f-1,l-f+1,s-l,lookuptype)
+ end
+ end
+ local chainlookups=ck[6]
+ if chainlookups then
+ local nofchainlookups=#chainlookups
+ if nofchainlookups==1 then
+ local chainlookupname=chainlookups[1]
+ local chainlookup=lookuptable[chainlookupname]
+ if chainlookup then
+ local cp=chainprocs[chainlookup.type]
+ if cp then
+ local ok
+ head,start,ok=cp(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,nil,sequence)
+ if ok then
+ done=true
+ end
+ else
+ logprocess("%s: %s is not yet supported",cref(kind,chainname,chainlookupname),chainlookup.type)
+ end
+ else
+ logprocess("%s is not yet supported",cref(kind,chainname,chainlookupname))
+ end
+ else
+ local i=1
+ repeat
+ if skipped then
+ while true do
+ local char=start.char
+ local ccd=descriptions[char]
+ if ccd then
+ local class=ccd.class
+ if class==skipmark or class==skipligature or class==skipbase or (markclass and class=="mark" and not markclass[char]) then
+ start=start.next
+ else
+ break
+ end
+ else
+ break
+ end
+ end
+ end
+ local chainlookupname=chainlookups[i]
+ local chainlookup=lookuptable[chainlookupname]
+ if not chainlookup then
+ i=i+1
+ else
+ local cp=chainmores[chainlookup.type]
+ if not cp then
+ logprocess("%s: %s is not yet supported",cref(kind,chainname,chainlookupname),chainlookup.type)
+ i=i+1
+ else
+ local ok,n
+ head,start,ok,n=cp(head,start,last,kind,chainname,ck,lookuphash,chainlookup,chainlookupname,i,sequence)
+ if ok then
+ done=true
+ i=i+(n or 1)
+ else
+ i=i+1
+ end
+ end
+ end
+ if start then
+ start=start.next
+ else
+ end
+ until i>nofchainlookups
+ end
+ else
+ local replacements=ck[7]
+ if replacements then
+ head,start,done=chainprocs.reversesub(head,start,last,kind,chainname,ck,lookuphash,replacements)
+ else
+ done=true
+ if trace_contexts then
+ logprocess("%s: skipping match",cref(kind,chainname))
+ end
+ end
+ end
+ end
+ end
+ return head,start,done
+end
+local verbose_handle_contextchain=function(font,...)
+ logwarning("no verbose handler installed, reverting to 'normal'")
+ otf.setcontextchain()
+ return normal_handle_contextchain(...)
+end
+otf.chainhandlers={
+ normal=normal_handle_contextchain,
+ verbose=verbose_handle_contextchain,
+}
+function otf.setcontextchain(method)
+ if not method or method=="normal" or not otf.chainhandlers[method] then
+ if handlers.contextchain then
+ logwarning("installing normal contextchain handler")
+ end
+ handlers.contextchain=normal_handle_contextchain
+ else
+ logwarning("installing contextchain handler %a",method)
+ local handler=otf.chainhandlers[method]
+ handlers.contextchain=function(...)
+ return handler(currentfont,...)
+ end
+ end
+ handlers.gsub_context=handlers.contextchain
+ handlers.gsub_contextchain=handlers.contextchain
+ handlers.gsub_reversecontextchain=handlers.contextchain
+ handlers.gpos_contextchain=handlers.contextchain
+ handlers.gpos_context=handlers.contextchain
+end
+otf.setcontextchain()
+local missing={}
+local function logprocess(...)
+ if trace_steps then
+ registermessage(...)
+ end
+ report_process(...)
+end
+local logwarning=report_process
+local function report_missing_cache(typ,lookup)
+ local f=missing[currentfont] if not f then f={} missing[currentfont]=f end
+ local t=f[typ] if not t then t={} f[typ]=t end
+ if not t[lookup] then
+ t[lookup]=true
+ logwarning("missing cache for lookup %a, type %a, font %a, name %a",lookup,typ,currentfont,tfmdata.properties.fullname)
+ end
+end
+local resolved={}
+local lookuphashes={}
+setmetatableindex(lookuphashes,function(t,font)
+ local lookuphash=fontdata[font].resources.lookuphash
+ if not lookuphash or not next(lookuphash) then
+ lookuphash=false
+ end
+ t[font]=lookuphash
+ return lookuphash
+end)
+local autofeatures=fonts.analyzers.features
+local function initialize(sequence,script,language,enabled)
+ local features=sequence.features
+ if features then
+ local order=sequence.order
+ if order then
+ for i=1,#order do
+ local kind=order[i]
+ local valid=enabled[kind]
+ if valid then
+ local scripts=features[kind]
+ local languages=scripts[script] or scripts[wildcard]
+ if languages and (languages[language] or languages[wildcard]) then
+ return { valid,autofeatures[kind] or false,sequence.chain or 0,kind,sequence }
+ end
+ end
+ end
+ else
+ end
+ end
+ return false
+end
+function otf.dataset(tfmdata,font)
+ local shared=tfmdata.shared
+ local properties=tfmdata.properties
+ local language=properties.language or "dflt"
+ local script=properties.script or "dflt"
+ local enabled=shared.features
+ local res=resolved[font]
+ if not res then
+ res={}
+ resolved[font]=res
+ end
+ local rs=res[script]
+ if not rs then
+ rs={}
+ res[script]=rs
+ end
+ local rl=rs[language]
+ if not rl then
+ rl={
+ }
+ rs[language]=rl
+ local sequences=tfmdata.resources.sequences
+ for s=1,#sequences do
+ local v=enabled and initialize(sequences[s],script,language,enabled)
+ if v then
+ rl[#rl+1]=v
+ end
+ end
+ end
+ return rl
+end
+local function featuresprocessor(head,font,attr)
+ local lookuphash=lookuphashes[font]
+ if not lookuphash then
+ return head,false
+ end
+ if trace_steps then
+ checkstep(head)
+ end
+ tfmdata=fontdata[font]
+ descriptions=tfmdata.descriptions
+ characters=tfmdata.characters
+ resources=tfmdata.resources
+ marks=resources.marks
+ anchorlookups=resources.lookup_to_anchor
+ lookuptable=resources.lookups
+ lookuptypes=resources.lookuptypes
+ currentfont=font
+ rlmode=0
+ local sequences=resources.sequences
+ local done=false
+ local datasets=otf.dataset(tfmdata,font,attr)
+ local dirstack={}
+ for s=1,#datasets do
+ local dataset=datasets[s]
+ featurevalue=dataset[1]
+ local sequence=dataset[5]
+ local rlparmode=0
+ local topstack=0
+ local success=false
+ local attribute=dataset[2]
+ local chain=dataset[3]
+ local typ=sequence.type
+ local subtables=sequence.subtables
+ if chain<0 then
+ local handler=handlers[typ]
+ local start=find_node_tail(head)
+ while start do
+ local id=start.id
+ if id==glyph_code then
+ if start.font==font and start.subtype<256 then
+ local a=start[0]
+ if a then
+ a=a==attr
+ else
+ a=true
+ end
+ if a then
+ for i=1,#subtables do
+ local lookupname=subtables[i]
+ local lookupcache=lookuphash[lookupname]
+ if lookupcache then
+ local lookupmatch=lookupcache[start.char]
+ if lookupmatch then
+ head,start,success=handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
+ if success then
+ break
+ end
+ end
+ else
+ report_missing_cache(typ,lookupname)
+ end
+ end
+ if start then start=start.prev end
+ else
+ start=start.prev
+ end
+ else
+ start=start.prev
+ end
+ else
+ start=start.prev
+ end
+ end
+ else
+ local handler=handlers[typ]
+ local ns=#subtables
+ local start=head
+ rlmode=0
+ if ns==1 then
+ local lookupname=subtables[1]
+ local lookupcache=lookuphash[lookupname]
+ if not lookupcache then
+ report_missing_cache(typ,lookupname)
+ else
+ local function subrun(start)
+ local head=start
+ local done=false
+ while start do
+ local id=start.id
+ if id==glyph_code and start.font==font and start.subtype<256 then
+ local a=start[0]
+ if a then
+ a=(a==attr) and (not attribute or start[a_state]==attribute)
+ else
+ a=not attribute or start[a_state]==attribute
+ end
+ if a then
+ local lookupmatch=lookupcache[start.char]
+ if lookupmatch then
+ local ok
+ head,start,ok=handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,1)
+ if ok then
+ done=true
+ end
+ end
+ if start then start=start.next end
+ else
+ start=start.next
+ end
+ else
+ start=start.next
+ end
+ end
+ if done then
+ success=true
+ return head
+ end
+ end
+ local function kerndisc(disc)
+ local prev=disc.prev
+ local next=disc.next
+ if prev and next then
+ prev.next=next
+ local a=prev[0]
+ if a then
+ a=(a==attr) and (not attribute or prev[a_state]==attribute)
+ else
+ a=not attribute or prev[a_state]==attribute
+ end
+ if a then
+ local lookupmatch=lookupcache[prev.char]
+ if lookupmatch then
+ local h,d,ok=handler(head,prev,dataset[4],lookupname,lookupmatch,sequence,lookuphash,1)
+ if ok then
+ done=true
+ success=true
+ end
+ end
+ end
+ prev.next=disc
+ end
+ return next
+ end
+ while start do
+ local id=start.id
+ if id==glyph_code then
+ if start.font==font and start.subtype<256 then
+ local a=start[0]
+ if a then
+ a=(a==attr) and (not attribute or start[a_state]==attribute)
+ else
+ a=not attribute or start[a_state]==attribute
+ end
+ if a then
+ local lookupmatch=lookupcache[start.char]
+ if lookupmatch then
+ local ok
+ head,start,ok=handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,1)
+ if ok then
+ success=true
+ end
+ end
+ if start then start=start.next end
+ else
+ start=start.next
+ end
+ else
+ start=start.next
+ end
+ elseif id==disc_code then
+ if start.subtype==discretionary_code then
+ local pre=start.pre
+ if pre then
+ local new=subrun(pre)
+ if new then start.pre=new end
+ end
+ local post=start.post
+ if post then
+ local new=subrun(post)
+ if new then start.post=new end
+ end
+ local replace=start.replace
+ if replace then
+ local new=subrun(replace)
+ if new then start.replace=new end
+ end
+elseif typ=="gpos_single" or typ=="gpos_pair" then
+ kerndisc(start)
+ end
+ start=start.next
+ elseif id==whatsit_code then
+ local subtype=start.subtype
+ if subtype==dir_code then
+ local dir=start.dir
+ if dir=="+TRT" or dir=="+TLT" then
+ topstack=topstack+1
+ dirstack[topstack]=dir
+ elseif dir=="-TRT" or dir=="-TLT" then
+ topstack=topstack-1
+ end
+ local newdir=dirstack[topstack]
+ if newdir=="+TRT" then
+ rlmode=-1
+ elseif newdir=="+TLT" then
+ rlmode=1
+ else
+ rlmode=rlparmode
+ end
+ if trace_directions then
+ report_process("directions after txtdir %a: parmode %a, txtmode %a, # stack %a, new dir %a",dir,rlparmode,rlmode,topstack,newdir)
+ end
+ elseif subtype==localpar_code then
+ local dir=start.dir
+ if dir=="TRT" then
+ rlparmode=-1
+ elseif dir=="TLT" then
+ rlparmode=1
+ else
+ rlparmode=0
+ end
+ rlmode=rlparmode
+ if trace_directions then
+ report_process("directions after pardir %a: parmode %a, txtmode %a",dir,rlparmode,rlmode)
+ end
+ end
+ start=start.next
+ elseif id==math_code then
+ start=end_of_math(start).next
+ else
+ start=start.next
+ end
+ end
+ end
+ else
+ local function subrun(start)
+ local head=start
+ local done=false
+ while start do
+ local id=start.id
+ if id==glyph_code and start.id==font and start.subtype<256 then
+ local a=start[0]
+ if a then
+ a=(a==attr) and (not attribute or start[a_state]==attribute)
+ else
+ a=not attribute or start[a_state]==attribute
+ end
+ if a then
+ for i=1,ns do
+ local lookupname=subtables[i]
+ local lookupcache=lookuphash[lookupname]
+ if lookupcache then
+ local lookupmatch=lookupcache[start.char]
+ if lookupmatch then
+ local ok
+ head,start,ok=handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
+ if ok then
+ done=true
+ break
+ elseif not start then
+ break
+ end
+ end
+ else
+ report_missing_cache(typ,lookupname)
+ end
+ end
+ if start then start=start.next end
+ else
+ start=start.next
+ end
+ else
+ start=start.next
+ end
+ end
+ if done then
+ success=true
+ return head
+ end
+ end
+ local function kerndisc(disc)
+ local prev=disc.prev
+ local next=disc.next
+ if prev and next then
+ prev.next=next
+ local a=prev[0]
+ if a then
+ a=(a==attr) and (not attribute or prev[a_state]==attribute)
+ else
+ a=not attribute or prev[a_state]==attribute
+ end
+ if a then
+ for i=1,ns do
+ local lookupname=subtables[i]
+ local lookupcache=lookuphash[lookupname]
+ if lookupcache then
+ local lookupmatch=lookupcache[prev.char]
+ if lookupmatch then
+ local h,d,ok=handler(head,prev,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
+ if ok then
+ done=true
+ break
+ end
+ end
+ else
+ report_missing_cache(typ,lookupname)
+ end
+ end
+ end
+ prev.next=disc
+ end
+ return next
+ end
+ while start do
+ local id=start.id
+ if id==glyph_code then
+ if start.font==font and start.subtype<256 then
+ local a=start[0]
+ if a then
+ a=(a==attr) and (not attribute or start[a_state]==attribute)
+ else
+ a=not attribute or start[a_state]==attribute
+ end
+ if a then
+ for i=1,ns do
+ local lookupname=subtables[i]
+ local lookupcache=lookuphash[lookupname]
+ if lookupcache then
+ local lookupmatch=lookupcache[start.char]
+ if lookupmatch then
+ local ok
+ head,start,ok=handler(head,start,dataset[4],lookupname,lookupmatch,sequence,lookuphash,i)
+ if ok then
+ success=true
+ break
+ elseif not start then
+ break
+ end
+ end
+ else
+ report_missing_cache(typ,lookupname)
+ end
+ end
+ if start then start=start.next end
+ else
+ start=start.next
+ end
+ else
+ start=start.next
+ end
+ elseif id==disc_code then
+ if start.subtype==discretionary_code then
+ local pre=start.pre
+ if pre then
+ local new=subrun(pre)
+ if new then start.pre=new end
+ end
+ local post=start.post
+ if post then
+ local new=subrun(post)
+ if new then start.post=new end
+ end
+ local replace=start.replace
+ if replace then
+ local new=subrun(replace)
+ if new then start.replace=new end
+ end
+elseif typ=="gpos_single" or typ=="gpos_pair" then
+ kerndisc(start)
+ end
+ start=start.next
+ elseif id==whatsit_code then
+ local subtype=start.subtype
+ if subtype==dir_code then
+ local dir=start.dir
+ if dir=="+TRT" or dir=="+TLT" then
+ topstack=topstack+1
+ dirstack[topstack]=dir
+ elseif dir=="-TRT" or dir=="-TLT" then
+ topstack=topstack-1
+ end
+ local newdir=dirstack[topstack]
+ if newdir=="+TRT" then
+ rlmode=-1
+ elseif newdir=="+TLT" then
+ rlmode=1
+ else
+ rlmode=rlparmode
+ end
+ if trace_directions then
+ report_process("directions after txtdir %a: parmode %a, txtmode %a, # stack %a, new dir %a",dir,rlparmode,rlmode,topstack,newdir)
+ end
+ elseif subtype==localpar_code then
+ local dir=start.dir
+ if dir=="TRT" then
+ rlparmode=-1
+ elseif dir=="TLT" then
+ rlparmode=1
+ else
+ rlparmode=0
+ end
+ rlmode=rlparmode
+ if trace_directions then
+ report_process("directions after pardir %a: parmode %a, txtmode %a",dir,rlparmode,rlmode)
+ end
+ end
+ start=start.next
+ elseif id==math_code then
+ start=end_of_math(start).next
+ else
+ start=start.next
+ end
+ end
+ end
+ end
+ if success then
+ done=true
+ end
+ if trace_steps then
+ registerstep(head)
+ end
+ end
+ return head,done
+end
+local function generic(lookupdata,lookupname,unicode,lookuphash)
+ local target=lookuphash[lookupname]
+ if target then
+ target[unicode]=lookupdata
+ else
+ lookuphash[lookupname]={ [unicode]=lookupdata }
+ end
+end
+local action={
+ substitution=generic,
+ multiple=generic,
+ alternate=generic,
+ position=generic,
+ ligature=function(lookupdata,lookupname,unicode,lookuphash)
+ local target=lookuphash[lookupname]
+ if not target then
+ target={}
+ lookuphash[lookupname]=target
+ end
+ for i=1,#lookupdata do
+ local li=lookupdata[i]
+ local tu=target[li]
+ if not tu then
+ tu={}
+ target[li]=tu
+ end
+ target=tu
+ end
+ target.ligature=unicode
+ end,
+ pair=function(lookupdata,lookupname,unicode,lookuphash)
+ local target=lookuphash[lookupname]
+ if not target then
+ target={}
+ lookuphash[lookupname]=target
+ end
+ local others=target[unicode]
+ local paired=lookupdata[1]
+ if others then
+ others[paired]=lookupdata
+ else
+ others={ [paired]=lookupdata }
+ target[unicode]=others
+ end
+ end,
+}
+local function prepare_lookups(tfmdata)
+ local rawdata=tfmdata.shared.rawdata
+ local resources=rawdata.resources
+ local lookuphash=resources.lookuphash
+ local anchor_to_lookup=resources.anchor_to_lookup
+ local lookup_to_anchor=resources.lookup_to_anchor
+ local lookuptypes=resources.lookuptypes
+ local characters=tfmdata.characters
+ local descriptions=tfmdata.descriptions
+ for unicode,character in next,characters do
+ local description=descriptions[unicode]
+ if description then
+ local lookups=description.slookups
+ if lookups then
+ for lookupname,lookupdata in next,lookups do
+ action[lookuptypes[lookupname]](lookupdata,lookupname,unicode,lookuphash)
+ end
+ end
+ local lookups=description.mlookups
+ if lookups then
+ for lookupname,lookuplist in next,lookups do
+ local lookuptype=lookuptypes[lookupname]
+ for l=1,#lookuplist do
+ local lookupdata=lookuplist[l]
+ action[lookuptype](lookupdata,lookupname,unicode,lookuphash)
+ end
+ end
+ end
+ local list=description.kerns
+ if list then
+ for lookup,krn in next,list do
+ local target=lookuphash[lookup]
+ if target then
+ target[unicode]=krn
+ else
+ lookuphash[lookup]={ [unicode]=krn }
+ end
+ end
+ end
+ local list=description.anchors
+ if list then
+ for typ,anchors in next,list do
+ if typ=="mark" or typ=="cexit" then
+ for name,anchor in next,anchors do
+ local lookups=anchor_to_lookup[name]
+ if lookups then
+ for lookup,_ in next,lookups do
+ local target=lookuphash[lookup]
+ if target then
+ target[unicode]=anchors
+ else
+ lookuphash[lookup]={ [unicode]=anchors }
+ end
+ end
+ end
+ end
+ end
+ end
+ end
+ end
+ end
+end
+local function split(replacement,original)
+ local result={}
+ for i=1,#replacement do
+ result[original[i]]=replacement[i]
+ end
+ return result
+end
+local valid={
+ coverage={ chainsub=true,chainpos=true,contextsub=true },
+ reversecoverage={ reversesub=true },
+ glyphs={ chainsub=true,chainpos=true },
+}
+local function prepare_contextchains(tfmdata)
+ local rawdata=tfmdata.shared.rawdata
+ local resources=rawdata.resources
+ local lookuphash=resources.lookuphash
+ local lookups=rawdata.lookups
+ if lookups then
+ for lookupname,lookupdata in next,rawdata.lookups do
+ local lookuptype=lookupdata.type
+ if lookuptype then
+ local rules=lookupdata.rules
+ if rules then
+ local format=lookupdata.format
+ local validformat=valid[format]
+ if not validformat then
+ report_prepare("unsupported format %a",format)
+ elseif not validformat[lookuptype] then
+ report_prepare("unsupported format %a, lookuptype %a, lookupname %a",format,lookuptype,lookupname)
+ else
+ local contexts=lookuphash[lookupname]
+ if not contexts then
+ contexts={}
+ lookuphash[lookupname]=contexts
+ end
+ local t,nt={},0
+ for nofrules=1,#rules do
+ local rule=rules[nofrules]
+ local current=rule.current
+ local before=rule.before
+ local after=rule.after
+ local replacements=rule.replacements
+ local sequence={}
+ local nofsequences=0
+ if before then
+ for n=1,#before do
+ nofsequences=nofsequences+1
+ sequence[nofsequences]=before[n]
+ end
+ end
+ local start=nofsequences+1
+ for n=1,#current do
+ nofsequences=nofsequences+1
+ sequence[nofsequences]=current[n]
+ end
+ local stop=nofsequences
+ if after then
+ for n=1,#after do
+ nofsequences=nofsequences+1
+ sequence[nofsequences]=after[n]
+ end
+ end
+ if sequence[1] then
+ nt=nt+1
+ t[nt]={ nofrules,lookuptype,sequence,start,stop,rule.lookups,replacements }
+ for unic,_ in next,sequence[start] do
+ local cu=contexts[unic]
+ if not cu then
+ contexts[unic]=t
+ end
+ end
+ end
+ end
+ end
+ else
+ end
+ else
+ report_prepare("missing lookuptype for lookupname %a",lookupname)
+ end
+ end
+ end
+end
+local function featuresinitializer(tfmdata,value)
+ if true then
+ local rawdata=tfmdata.shared.rawdata
+ local properties=rawdata.properties
+ if not properties.initialized then
+ local starttime=trace_preparing and os.clock()
+ local resources=rawdata.resources
+ resources.lookuphash=resources.lookuphash or {}
+ prepare_contextchains(tfmdata)
+ prepare_lookups(tfmdata)
+ properties.initialized=true
+ if trace_preparing then
+ report_prepare("preparation time is %0.3f seconds for %a",os.clock()-starttime,tfmdata.properties.fullname)
+ end
+ end
+ end
+end
+registerotffeature {
+ name="features",
+ description="features",
+ default=true,
+ initializers={
+ position=1,
+ node=featuresinitializer,
+ },
+ processors={
+ node=featuresprocessor,
+ }
+}
+otf.handlers=handlers
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-otp']={
+ version=1.001,
+ comment="companion to font-otf.lua (packing)",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local next,type=next,type
+local sort,concat=table.sort,table.concat
+local sortedhash=table.sortedhash
+local trace_packing=false trackers.register("otf.packing",function(v) trace_packing=v end)
+local trace_loading=false trackers.register("otf.loading",function(v) trace_loading=v end)
+local report_otf=logs.reporter("fonts","otf loading")
+fonts=fonts or {}
+local handlers=fonts.handlers or {}
+fonts.handlers=handlers
+local otf=handlers.otf or {}
+handlers.otf=otf
+local enhancers=otf.enhancers or {}
+otf.enhancers=enhancers
+local glists=otf.glists or { "gsub","gpos" }
+otf.glists=glists
+local criterium=1
+local threshold=0
+local function tabstr_normal(t)
+ local s={}
+ local n=0
+ for k,v in next,t do
+ n=n+1
+ if type(v)=="table" then
+ s[n]=k..">"..tabstr_normal(v)
+ elseif v==true then
+ s[n]=k.."+"
+ elseif v then
+ s[n]=k.."="..v
+ else
+ s[n]=k.."-"
+ end
+ end
+ if n==0 then
+ return ""
+ elseif n==1 then
+ return s[1]
+ else
+ sort(s)
+ return concat(s,",")
+ end
+end
+local function tabstr_flat(t)
+ local s={}
+ local n=0
+ for k,v in next,t do
+ n=n+1
+ s[n]=k.."="..v
+ end
+ if n==0 then
+ return ""
+ elseif n==1 then
+ return s[1]
+ else
+ sort(s)
+ return concat(s,",")
+ end
+end
+local function tabstr_mixed(t)
+ local s={}
+ local n=#t
+ if n==0 then
+ return ""
+ elseif n==1 then
+ local k=t[1]
+ if k==true then
+ return "++"
+ elseif k==false then
+ return "--"
+ else
+ return tostring(k)
+ end
+ else
+ for i=1,n do
+ local k=t[i]
+ if k==true then
+ s[i]="++"
+ elseif k==false then
+ s[i]="--"
+ else
+ s[i]=k
+ end
+ end
+ return concat(s,",")
+ end
+end
+local function tabstr_boolean(t)
+ local s={}
+ local n=0
+ for k,v in next,t do
+ n=n+1
+ if v then
+ s[n]=k.."+"
+ else
+ s[n]=k.."-"
+ end
+ end
+ if n==0 then
+ return ""
+ elseif n==1 then
+ return s[1]
+ else
+ sort(s)
+ return concat(s,",")
+ end
+end
+local function packdata(data)
+ if data then
+ local h,t,c={},{},{}
+ local hh,tt,cc={},{},{}
+ local nt,ntt=0,0
+ local function pack_normal(v)
+ local tag=tabstr_normal(v)
+ local ht=h[tag]
+ if ht then
+ c[ht]=c[ht]+1
+ return ht
+ else
+ nt=nt+1
+ t[nt]=v
+ h[tag]=nt
+ c[nt]=1
+ return nt
+ end
+ end
+ local function pack_flat(v)
+ local tag=tabstr_flat(v)
+ local ht=h[tag]
+ if ht then
+ c[ht]=c[ht]+1
+ return ht
+ else
+ nt=nt+1
+ t[nt]=v
+ h[tag]=nt
+ c[nt]=1
+ return nt
+ end
+ end
+ local function pack_boolean(v)
+ local tag=tabstr_boolean(v)
+ local ht=h[tag]
+ if ht then
+ c[ht]=c[ht]+1
+ return ht
+ else
+ nt=nt+1
+ t[nt]=v
+ h[tag]=nt
+ c[nt]=1
+ return nt
+ end
+ end
+ local function pack_indexed(v)
+ local tag=concat(v," ")
+ local ht=h[tag]
+ if ht then
+ c[ht]=c[ht]+1
+ return ht
+ else
+ nt=nt+1
+ t[nt]=v
+ h[tag]=nt
+ c[nt]=1
+ return nt
+ end
+ end
+ local function pack_mixed(v)
+ local tag=tabstr_mixed(v)
+ local ht=h[tag]
+ if ht then
+ c[ht]=c[ht]+1
+ return ht
+ else
+ nt=nt+1
+ t[nt]=v
+ h[tag]=nt
+ c[nt]=1
+ return nt
+ end
+ end
+ local function pack_final(v)
+ if c[v]<=criterium then
+ return t[v]
+ else
+ local hv=hh[v]
+ if hv then
+ return hv
+ else
+ ntt=ntt+1
+ tt[ntt]=t[v]
+ hh[v]=ntt
+ cc[ntt]=c[v]
+ return ntt
+ end
+ end
+ end
+ local function success(stage,pass)
+ if nt==0 then
+ if trace_loading or trace_packing then
+ report_otf("pack quality: nothing to pack")
+ end
+ return false
+ elseif nt>=threshold then
+ local one,two,rest=0,0,0
+ if pass==1 then
+ for k,v in next,c do
+ if v==1 then
+ one=one+1
+ elseif v==2 then
+ two=two+1
+ else
+ rest=rest+1
+ end
+ end
+ else
+ for k,v in next,cc do
+ if v>20 then
+ rest=rest+1
+ elseif v>10 then
+ two=two+1
+ else
+ one=one+1
+ end
+ end
+ data.tables=tt
+ end
+ if trace_loading or trace_packing then
+ report_otf("pack quality: stage %s, pass %s, %s packed, 1-10:%s, 11-20:%s, rest:%s (criterium: %s)",stage,pass,one+two+rest,one,two,rest,criterium)
+ end
+ return true
+ else
+ if trace_loading or trace_packing then
+ report_otf("pack quality: stage %s, pass %s, %s packed, aborting pack (threshold: %s)",stage,pass,nt,threshold)
+ end
+ return false
+ end
+ end
+ local function packers(pass)
+ if pass==1 then
+ return pack_normal,pack_indexed,pack_flat,pack_boolean,pack_mixed
+ else
+ return pack_final,pack_final,pack_final,pack_final,pack_final
+ end
+ end
+ local resources=data.resources
+ local lookuptypes=resources.lookuptypes
+ for pass=1,2 do
+ if trace_packing then
+ report_otf("start packing: stage 1, pass %s",pass)
+ end
+ local pack_normal,pack_indexed,pack_flat,pack_boolean,pack_mixed=packers(pass)
+ for unicode,description in next,data.descriptions do
+ local boundingbox=description.boundingbox
+ if boundingbox then
+ description.boundingbox=pack_indexed(boundingbox)
+ end
+ local slookups=description.slookups
+ if slookups then
+ for tag,slookup in next,slookups do
+ local what=lookuptypes[tag]
+ if what=="pair" then
+ local t=slookup[2] if t then slookup[2]=pack_indexed(t) end
+ local t=slookup[3] if t then slookup[3]=pack_indexed(t) end
+ elseif what~="substitution" then
+ slookups[tag]=pack_indexed(slookup)
+ end
+ end
+ end
+ local mlookups=description.mlookups
+ if mlookups then
+ for tag,mlookup in next,mlookups do
+ local what=lookuptypes[tag]
+ if what=="pair" then
+ for i=1,#mlookup do
+ local lookup=mlookup[i]
+ local t=lookup[2] if t then lookup[2]=pack_indexed(t) end
+ local t=lookup[3] if t then lookup[3]=pack_indexed(t) end
+ end
+ elseif what~="substitution" then
+ for i=1,#mlookup do
+ mlookup[i]=pack_indexed(mlookup[i])
+ end
+ end
+ end
+ end
+ local kerns=description.kerns
+ if kerns then
+ for tag,kern in next,kerns do
+ kerns[tag]=pack_flat(kern)
+ end
+ end
+ local math=description.math
+ if math then
+ local kerns=math.kerns
+ if kerns then
+ for tag,kern in next,kerns do
+ kerns[tag]=pack_normal(kern)
+ end
+ end
+ end
+ local anchors=description.anchors
+ if anchors then
+ for what,anchor in next,anchors do
+ if what=="baselig" then
+ for _,a in next,anchor do
+ for k=1,#a do
+ a[k]=pack_indexed(a[k])
+ end
+ end
+ else
+ for k,v in next,anchor do
+ anchor[k]=pack_indexed(v)
+ end
+ end
+ end
+ end
+ local altuni=description.altuni
+ if altuni then
+ for i=1,#altuni do
+ altuni[i]=pack_flat(altuni[i])
+ end
+ end
+ end
+ local lookups=data.lookups
+ if lookups then
+ for _,lookup in next,lookups do
+ local rules=lookup.rules
+ if rules then
+ for i=1,#rules do
+ local rule=rules[i]
+ local r=rule.before if r then for i=1,#r do r[i]=pack_boolean(r[i]) end end
+ local r=rule.after if r then for i=1,#r do r[i]=pack_boolean(r[i]) end end
+ local r=rule.current if r then for i=1,#r do r[i]=pack_boolean(r[i]) end end
+ local r=rule.replacements if r then rule.replacements=pack_flat (r) end
+ local r=rule.lookups if r then rule.lookups=pack_indexed(r) end
+ end
+ end
+ end
+ end
+ local anchor_to_lookup=resources.anchor_to_lookup
+ if anchor_to_lookup then
+ for anchor,lookup in next,anchor_to_lookup do
+ anchor_to_lookup[anchor]=pack_normal(lookup)
+ end
+ end
+ local lookup_to_anchor=resources.lookup_to_anchor
+ if lookup_to_anchor then
+ for lookup,anchor in next,lookup_to_anchor do
+ lookup_to_anchor[lookup]=pack_normal(anchor)
+ end
+ end
+ local sequences=resources.sequences
+ if sequences then
+ for feature,sequence in next,sequences do
+ local flags=sequence.flags
+ if flags then
+ sequence.flags=pack_normal(flags)
+ end
+ local subtables=sequence.subtables
+ if subtables then
+ sequence.subtables=pack_normal(subtables)
+ end
+ local features=sequence.features
+ if features then
+ for script,feature in next,features do
+ features[script]=pack_normal(feature)
+ end
+ end
+ local order=sequence.order
+ if order then
+ sequence.order=pack_indexed(order)
+ end
+ local markclass=sequence.markclass
+ if markclass then
+ sequence.markclass=pack_boolean(markclass)
+ end
+ end
+ end
+ local lookups=resources.lookups
+ if lookups then
+ for name,lookup in next,lookups do
+ local flags=lookup.flags
+ if flags then
+ lookup.flags=pack_normal(flags)
+ end
+ local subtables=lookup.subtables
+ if subtables then
+ lookup.subtables=pack_normal(subtables)
+ end
+ end
+ end
+ local features=resources.features
+ if features then
+ for _,what in next,glists do
+ local list=features[what]
+ if list then
+ for feature,spec in next,list do
+ list[feature]=pack_normal(spec)
+ end
+ end
+ end
+ end
+ if not success(1,pass) then
+ return
+ end
+ end
+ if nt>0 then
+ for pass=1,2 do
+ if trace_packing then
+ report_otf("start packing: stage 2, pass %s",pass)
+ end
+ local pack_normal,pack_indexed,pack_flat,pack_boolean,pack_mixed=packers(pass)
+ for unicode,description in next,data.descriptions do
+ local kerns=description.kerns
+ if kerns then
+ description.kerns=pack_normal(kerns)
+ end
+ local math=description.math
+ if math then
+ local kerns=math.kerns
+ if kerns then
+ math.kerns=pack_normal(kerns)
+ end
+ end
+ local anchors=description.anchors
+ if anchors then
+ description.anchors=pack_normal(anchors)
+ end
+ local mlookups=description.mlookups
+ if mlookups then
+ for tag,mlookup in next,mlookups do
+ mlookups[tag]=pack_normal(mlookup)
+ end
+ end
+ local altuni=description.altuni
+ if altuni then
+ description.altuni=pack_normal(altuni)
+ end
+ end
+ local lookups=data.lookups
+ if lookups then
+ for _,lookup in next,lookups do
+ local rules=lookup.rules
+ if rules then
+ for i=1,#rules do
+ local rule=rules[i]
+ local r=rule.before if r then rule.before=pack_normal(r) end
+ local r=rule.after if r then rule.after=pack_normal(r) end
+ local r=rule.current if r then rule.current=pack_normal(r) end
+ end
+ end
+ end
+ end
+ local sequences=resources.sequences
+ if sequences then
+ for feature,sequence in next,sequences do
+ sequence.features=pack_normal(sequence.features)
+ end
+ end
+ if not success(2,pass) then
+ end
+ end
+ for pass=1,2 do
+ local pack_normal,pack_indexed,pack_flat,pack_boolean,pack_mixed=packers(pass)
+ for unicode,description in next,data.descriptions do
+ local slookups=description.slookups
+ if slookups then
+ description.slookups=pack_normal(slookups)
+ end
+ local mlookups=description.mlookups
+ if mlookups then
+ description.mlookups=pack_normal(mlookups)
+ end
+ end
+ end
+ end
+ end
+end
+local unpacked_mt={
+ __index=function(t,k)
+ t[k]=false
+ return k
+ end
+}
+local function unpackdata(data)
+ if data then
+ local tables=data.tables
+ if tables then
+ local resources=data.resources
+ local lookuptypes=resources.lookuptypes
+ local unpacked={}
+ setmetatable(unpacked,unpacked_mt)
+ for unicode,description in next,data.descriptions do
+ local tv=tables[description.boundingbox]
+ if tv then
+ description.boundingbox=tv
+ end
+ local slookups=description.slookups
+ if slookups then
+ local tv=tables[slookups]
+ if tv then
+ description.slookups=tv
+ slookups=unpacked[tv]
+ end
+ if slookups then
+ for tag,lookup in next,slookups do
+ local what=lookuptypes[tag]
+ if what=="pair" then
+ local tv=tables[lookup[2]]
+ if tv then
+ lookup[2]=tv
+ end
+ local tv=tables[lookup[3]]
+ if tv then
+ lookup[3]=tv
+ end
+ elseif what~="substitution" then
+ local tv=tables[lookup]
+ if tv then
+ slookups[tag]=tv
+ end
+ end
+ end
+ end
+ end
+ local mlookups=description.mlookups
+ if mlookups then
+ local tv=tables[mlookups]
+ if tv then
+ description.mlookups=tv
+ mlookups=unpacked[tv]
+ end
+ if mlookups then
+ for tag,list in next,mlookups do
+ local tv=tables[list]
+ if tv then
+ mlookups[tag]=tv
+ list=unpacked[tv]
+ end
+ if list then
+ local what=lookuptypes[tag]
+ if what=="pair" then
+ for i=1,#list do
+ local lookup=list[i]
+ local tv=tables[lookup[2]]
+ if tv then
+ lookup[2]=tv
+ end
+ local tv=tables[lookup[3]]
+ if tv then
+ lookup[3]=tv
+ end
+ end
+ elseif what~="substitution" then
+ for i=1,#list do
+ local tv=tables[list[i]]
+ if tv then
+ list[i]=tv
+ end
+ end
+ end
+ end
+ end
+ end
+ end
+ local kerns=description.kerns
+ if kerns then
+ local tm=tables[kerns]
+ if tm then
+ description.kerns=tm
+ kerns=unpacked[tm]
+ end
+ if kerns then
+ for k,kern in next,kerns do
+ local tv=tables[kern]
+ if tv then
+ kerns[k]=tv
+ end
+ end
+ end
+ end
+ local math=description.math
+ if math then
+ local kerns=math.kerns
+ if kerns then
+ local tm=tables[kerns]
+ if tm then
+ math.kerns=tm
+ kerns=unpacked[tm]
+ end
+ if kerns then
+ for k,kern in next,kerns do
+ local tv=tables[kern]
+ if tv then
+ kerns[k]=tv
+ end
+ end
+ end
+ end
+ end
+ local anchors=description.anchors
+ if anchors then
+ local ta=tables[anchors]
+ if ta then
+ description.anchors=ta
+ anchors=unpacked[ta]
+ end
+ if anchors then
+ for tag,anchor in next,anchors do
+ if tag=="baselig" then
+ for _,list in next,anchor do
+ for i=1,#list do
+ local tv=tables[list[i]]
+ if tv then
+ list[i]=tv
+ end
+ end
+ end
+ else
+ for a,data in next,anchor do
+ local tv=tables[data]
+ if tv then
+ anchor[a]=tv
+ end
+ end
+ end
+ end
+ end
+ end
+ local altuni=description.altuni
+ if altuni then
+ local altuni=tables[altuni]
+ if altuni then
+ description.altuni=altuni
+ for i=1,#altuni do
+ local tv=tables[altuni[i]]
+ if tv then
+ altuni[i]=tv
+ end
+ end
+ end
+ end
+ end
+ local lookups=data.lookups
+ if lookups then
+ for _,lookup in next,lookups do
+ local rules=lookup.rules
+ if rules then
+ for i=1,#rules do
+ local rule=rules[i]
+ local before=rule.before
+ if before then
+ local tv=tables[before]
+ if tv then
+ rule.before=tv
+ before=unpacked[tv]
+ end
+ if before then
+ for i=1,#before do
+ local tv=tables[before[i]]
+ if tv then
+ before[i]=tv
+ end
+ end
+ end
+ end
+ local after=rule.after
+ if after then
+ local tv=tables[after]
+ if tv then
+ rule.after=tv
+ after=unpacked[tv]
+ end
+ if after then
+ for i=1,#after do
+ local tv=tables[after[i]]
+ if tv then
+ after[i]=tv
+ end
+ end
+ end
+ end
+ local current=rule.current
+ if current then
+ local tv=tables[current]
+ if tv then
+ rule.current=tv
+ current=unpacked[tv]
+ end
+ if current then
+ for i=1,#current do
+ local tv=tables[current[i]]
+ if tv then
+ current[i]=tv
+ end
+ end
+ end
+ end
+ local replacements=rule.replacements
+ if replacements then
+ local tv=tables[replacements]
+ if tv then
+ rule.replacements=tv
+ end
+ end
+ local lookups=rule.lookups
+ if lookups then
+ local tv=tables[lookups]
+ if tv then
+ rule.lookups=tv
+ end
+ end
+ end
+ end
+ end
+ end
+ local anchor_to_lookup=resources.anchor_to_lookup
+ if anchor_to_lookup then
+ for anchor,lookup in next,anchor_to_lookup do
+ local tv=tables[lookup]
+ if tv then
+ anchor_to_lookup[anchor]=tv
+ end
+ end
+ end
+ local lookup_to_anchor=resources.lookup_to_anchor
+ if lookup_to_anchor then
+ for lookup,anchor in next,lookup_to_anchor do
+ local tv=tables[anchor]
+ if tv then
+ lookup_to_anchor[lookup]=tv
+ end
+ end
+ end
+ local ls=resources.sequences
+ if ls then
+ for _,feature in next,ls do
+ local flags=feature.flags
+ if flags then
+ local tv=tables[flags]
+ if tv then
+ feature.flags=tv
+ end
+ end
+ local subtables=feature.subtables
+ if subtables then
+ local tv=tables[subtables]
+ if tv then
+ feature.subtables=tv
+ end
+ end
+ local features=feature.features
+ if features then
+ local tv=tables[features]
+ if tv then
+ feature.features=tv
+ features=unpacked[tv]
+ end
+ if features then
+ for script,data in next,features do
+ local tv=tables[data]
+ if tv then
+ features[script]=tv
+ end
+ end
+ end
+ end
+ local order=feature.order
+ if order then
+ local tv=tables[order]
+ if tv then
+ feature.order=tv
+ end
+ end
+ local markclass=feature.markclass
+ if markclass then
+ local tv=tables[markclass]
+ if tv then
+ feature.markclass=tv
+ end
+ end
+ end
+ end
+ local lookups=resources.lookups
+ if lookups then
+ for _,lookup in next,lookups do
+ local flags=lookup.flags
+ if flags then
+ local tv=tables[flags]
+ if tv then
+ lookup.flags=tv
+ end
+ end
+ local subtables=lookup.subtables
+ if subtables then
+ local tv=tables[subtables]
+ if tv then
+ lookup.subtables=tv
+ end
+ end
+ end
+ end
+ local features=resources.features
+ if features then
+ for _,what in next,glists do
+ local feature=features[what]
+ if feature then
+ for tag,spec in next,feature do
+ local tv=tables[spec]
+ if tv then
+ feature[tag]=tv
+ end
+ end
+ end
+ end
+ end
+ data.tables=nil
+ end
+ end
+end
+if otf.enhancers.register then
+ otf.enhancers.register("pack",packdata)
+ otf.enhancers.register("unpack",unpackdata)
+end
+otf.enhancers.unpack=unpackdata
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['luatex-fonts-lua']={
+ version=1.001,
+ comment="companion to luatex-*.tex",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+if context then
+ texio.write_nl("fatal error: this module is not for context")
+ os.exit()
+end
+local fonts=fonts
+fonts.formats.lua="lua"
+function fonts.readers.lua(specification)
+ local fullname=specification.filename or ""
+ if fullname=="" then
+ local forced=specification.forced or ""
+ if forced~="" then
+ fullname=specification.name.."."..forced
+ else
+ fullname=specification.name
+ end
+ end
+ local fullname=resolvers.findfile(fullname) or ""
+ if fullname~="" then
+ local loader=loadfile(fullname)
+ loader=loader and loader()
+ return loader and loader(specification)
+ end
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['font-def']={
+ version=1.001,
+ comment="companion to font-ini.mkiv",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+local format,gmatch,match,find,lower,gsub=string.format,string.gmatch,string.match,string.find,string.lower,string.gsub
+local tostring,next=tostring,next
+local lpegmatch=lpeg.match
+local suffixonly,removesuffix=file.suffix,file.removesuffix
+local allocate=utilities.storage.allocate
+local trace_defining=false trackers .register("fonts.defining",function(v) trace_defining=v end)
+local directive_embedall=false directives.register("fonts.embedall",function(v) directive_embedall=v end)
+trackers.register("fonts.loading","fonts.defining","otf.loading","afm.loading","tfm.loading")
+trackers.register("fonts.all","fonts.*","otf.*","afm.*","tfm.*")
+local report_defining=logs.reporter("fonts","defining")
+local fonts=fonts
+local fontdata=fonts.hashes.identifiers
+local readers=fonts.readers
+local definers=fonts.definers
+local specifiers=fonts.specifiers
+local constructors=fonts.constructors
+local fontgoodies=fonts.goodies
+readers.sequence=allocate { 'otf','ttf','afm','tfm','lua' }
+local variants=allocate()
+specifiers.variants=variants
+definers.methods=definers.methods or {}
+local internalized=allocate()
+local lastdefined=nil
+local loadedfonts=constructors.loadedfonts
+local designsizes=constructors.designsizes
+local resolvefile=fontgoodies and fontgoodies.filenames and fontgoodies.filenames.resolve or function(s) return s end
+local splitter,splitspecifiers=nil,""
+local P,C,S,Cc=lpeg.P,lpeg.C,lpeg.S,lpeg.Cc
+local left=P("(")
+local right=P(")")
+local colon=P(":")
+local space=P(" ")
+definers.defaultlookup="file"
+local prefixpattern=P(false)
+local function addspecifier(symbol)
+ splitspecifiers=splitspecifiers..symbol
+ local method=S(splitspecifiers)
+ local lookup=C(prefixpattern)*colon
+ local sub=left*C(P(1-left-right-method)^1)*right
+ local specification=C(method)*C(P(1)^1)
+ local name=C((1-sub-specification)^1)
+ splitter=P((lookup+Cc(""))*name*(sub+Cc(""))*(specification+Cc("")))
+end
+local function addlookup(str,default)
+ prefixpattern=prefixpattern+P(str)
+end
+definers.addlookup=addlookup
+addlookup("file")
+addlookup("name")
+addlookup("spec")
+local function getspecification(str)
+ return lpegmatch(splitter,str or "")
+end
+definers.getspecification=getspecification
+function definers.registersplit(symbol,action,verbosename)
+ addspecifier(symbol)
+ variants[symbol]=action
+ if verbosename then
+ variants[verbosename]=action
+ end
+end
+local function makespecification(specification,lookup,name,sub,method,detail,size)
+ size=size or 655360
+ if not lookup or lookup=="" then
+ lookup=definers.defaultlookup
+ end
+ if trace_defining then
+ report_defining("specification %a, lookup %a, name %a, sub %a, method %a, detail %a",
+ specification,lookup,name,sub,method,detail)
+ end
+ local t={
+ lookup=lookup,
+ specification=specification,
+ size=size,
+ name=name,
+ sub=sub,
+ method=method,
+ detail=detail,
+ resolved="",
+ forced="",
+ features={},
+ }
+ return t
+end
+definers.makespecification=makespecification
+function definers.analyze(specification,size)
+ local lookup,name,sub,method,detail=getspecification(specification or "")
+ return makespecification(specification,lookup,name,sub,method,detail,size)
+end
+definers.resolvers=definers.resolvers or {}
+local resolvers=definers.resolvers
+function resolvers.file(specification)
+ local name=resolvefile(specification.name)
+ local suffix=lower(suffixonly(name))
+ if fonts.formats[suffix] then
+ specification.forced=suffix
+ specification.forcedname=name
+ specification.name=removesuffix(name)
+ else
+ specification.name=name
+ end
+end
+function resolvers.name(specification)
+ local resolve=fonts.names.resolve
+ if resolve then
+ local resolved,sub=resolve(specification.name,specification.sub,specification)
+ if resolved then
+ specification.resolved=resolved
+ specification.sub=sub
+ local suffix=lower(suffixonly(resolved))
+ if fonts.formats[suffix] then
+ specification.forced=suffix
+ specification.forcedname=resolved
+ specification.name=removesuffix(resolved)
+ else
+ specification.name=resolved
+ end
+ end
+ else
+ resolvers.file(specification)
+ end
+end
+function resolvers.spec(specification)
+ local resolvespec=fonts.names.resolvespec
+ if resolvespec then
+ local resolved,sub=resolvespec(specification.name,specification.sub,specification)
+ if resolved then
+ specification.resolved=resolved
+ specification.sub=sub
+ specification.forced=lower(suffixonly(resolved))
+ specification.forcedname=resolved
+ specification.name=removesuffix(resolved)
+ end
+ else
+ resolvers.name(specification)
+ end
+end
+function definers.resolve(specification)
+ if not specification.resolved or specification.resolved=="" then
+ local r=resolvers[specification.lookup]
+ if r then
+ r(specification)
+ end
+ end
+ if specification.forced=="" then
+ specification.forced=nil
+ specification.forcedname=nil
+ end
+ specification.hash=lower(specification.name..' @ '..constructors.hashfeatures(specification))
+ if specification.sub and specification.sub~="" then
+ specification.hash=specification.sub..' @ '..specification.hash
+ end
+ return specification
+end
+function definers.applypostprocessors(tfmdata)
+ local postprocessors=tfmdata.postprocessors
+ if postprocessors then
+ local properties=tfmdata.properties
+ for i=1,#postprocessors do
+ local extrahash=postprocessors[i](tfmdata)
+ if type(extrahash)=="string" and extrahash~="" then
+ extrahash=gsub(lower(extrahash),"[^a-z]","-")
+ properties.fullname=format("%s-%s",properties.fullname,extrahash)
+ end
+ end
+ end
+ return tfmdata
+end
+local function checkembedding(tfmdata)
+ local properties=tfmdata.properties
+ local embedding
+ if directive_embedall then
+ embedding="full"
+ elseif properties and properties.filename and constructors.dontembed[properties.filename] then
+ embedding="no"
+ else
+ embedding="subset"
+ end
+ if properties then
+ properties.embedding=embedding
+ else
+ tfmdata.properties={ embedding=embedding }
+ end
+ tfmdata.embedding=embedding
+end
+function definers.loadfont(specification)
+ local hash=constructors.hashinstance(specification)
+ local tfmdata=loadedfonts[hash]
+ if not tfmdata then
+ local forced=specification.forced or ""
+ if forced~="" then
+ local reader=readers[lower(forced)]
+ tfmdata=reader and reader(specification)
+ if not tfmdata then
+ report_defining("forced type %a of %a not found",forced,specification.name)
+ end
+ else
+ local sequence=readers.sequence
+ for s=1,#sequence do
+ local reader=sequence[s]
+ if readers[reader] then
+ if trace_defining then
+ report_defining("trying (reader sequence driven) type %a for %a with file %a",reader,specification.name,specification.filename)
+ end
+ tfmdata=readers[reader](specification)
+ if tfmdata then
+ break
+ else
+ specification.filename=nil
+ end
+ end
+ end
+ end
+ if tfmdata then
+ tfmdata=definers.applypostprocessors(tfmdata)
+ checkembedding(tfmdata)
+ loadedfonts[hash]=tfmdata
+ designsizes[specification.hash]=tfmdata.parameters.designsize
+ end
+ end
+ if not tfmdata then
+ report_defining("font with asked name %a is not found using lookup %a",specification.name,specification.lookup)
+ end
+ return tfmdata
+end
+function constructors.checkvirtualids()
+end
+function constructors.readanddefine(name,size)
+ local specification=definers.analyze(name,size)
+ local method=specification.method
+ if method and variants[method] then
+ specification=variants[method](specification)
+ end
+ specification=definers.resolve(specification)
+ local hash=constructors.hashinstance(specification)
+ local id=definers.registered(hash)
+ if not id then
+ local tfmdata=definers.loadfont(specification)
+ if tfmdata then
+ tfmdata.properties.hash=hash
+ constructors.checkvirtualids(tfmdata)
+ id=font.define(tfmdata)
+ definers.register(tfmdata,id)
+ else
+ id=0
+ end
+ end
+ return fontdata[id],id
+end
+function definers.current()
+ return lastdefined
+end
+function definers.registered(hash)
+ local id=internalized[hash]
+ return id,id and fontdata[id]
+end
+function definers.register(tfmdata,id)
+ if tfmdata and id then
+ local hash=tfmdata.properties.hash
+ if not hash then
+ report_defining("registering font, id %a, name %a, invalid hash",id,tfmdata.properties.filename or "?")
+ elseif not internalized[hash] then
+ internalized[hash]=id
+ if trace_defining then
+ report_defining("registering font, id %s, hash %a",id,hash)
+ end
+ fontdata[id]=tfmdata
+ end
+ end
+end
+function definers.read(specification,size,id)
+ statistics.starttiming(fonts)
+ if type(specification)=="string" then
+ specification=definers.analyze(specification,size)
+ end
+ local method=specification.method
+ if method and variants[method] then
+ specification=variants[method](specification)
+ end
+ specification=definers.resolve(specification)
+ local hash=constructors.hashinstance(specification)
+ local tfmdata=definers.registered(hash)
+ if tfmdata then
+ if trace_defining then
+ report_defining("already hashed: %s",hash)
+ end
+ else
+ tfmdata=definers.loadfont(specification)
+ if tfmdata then
+ if trace_defining then
+ report_defining("loaded and hashed: %s",hash)
+ end
+ tfmdata.properties.hash=hash
+ if id then
+ definers.register(tfmdata,id)
+ end
+ else
+ if trace_defining then
+ report_defining("not loaded and hashed: %s",hash)
+ end
+ end
+ end
+ lastdefined=tfmdata or id
+ if not tfmdata then
+ report_defining("unknown font %a, loading aborted",specification.name)
+ elseif trace_defining and type(tfmdata)=="table" then
+ local properties=tfmdata.properties or {}
+ local parameters=tfmdata.parameters or {}
+ report_defining("using %s font with id %a, name %a, size %a, bytes %a, encoding %a, fullname %a, filename %a",
+ properties.format,id,properties.name,parameters.size,properties.encodingbytes,
+ properties.encodingname,properties.fullname,file.basename(properties.filename))
+ end
+ statistics.stoptiming(fonts)
+ return tfmdata
+end
+function font.getfont(id)
+ return fontdata[id]
+end
+callbacks.register('define_font',definers.read,"definition of fonts (tfmdata preparation)")
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['luatex-font-def']={
+ version=1.001,
+ comment="companion to luatex-*.tex",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+if context then
+ texio.write_nl("fatal error: this module is not for context")
+ os.exit()
+end
+local fonts=fonts
+fonts.constructors.namemode="specification"
+function fonts.definers.getspecification(str)
+ return "",str,"",":",str
+end
+local list={}
+local function issome () list.lookup='name' end
+local function isfile () list.lookup='file' end
+local function isname () list.lookup='name' end
+local function thename(s) list.name=s end
+local function issub (v) list.sub=v end
+local function iscrap (s) list.crap=string.lower(s) end
+local function iskey (k,v) list[k]=v end
+local function istrue (s) list[s]=true end
+local function isfalse(s) list[s]=false end
+local P,S,R,C=lpeg.P,lpeg.S,lpeg.R,lpeg.C
+local spaces=P(" ")^0
+local namespec=(1-S("/:("))^0
+local crapspec=spaces*P("/")*(((1-P(":"))^0)/iscrap)*spaces
+local filename_1=P("file:")/isfile*(namespec/thename)
+local filename_2=P("[")*P(true)/isname*(((1-P("]"))^0)/thename)*P("]")
+local fontname_1=P("name:")/isname*(namespec/thename)
+local fontname_2=P(true)/issome*(namespec/thename)
+local sometext=(R("az","AZ","09")+S("+-."))^1
+local truevalue=P("+")*spaces*(sometext/istrue)
+local falsevalue=P("-")*spaces*(sometext/isfalse)
+local keyvalue=(C(sometext)*spaces*P("=")*spaces*C(sometext))/iskey
+local somevalue=sometext/istrue
+local subvalue=P("(")*(C(P(1-S("()"))^1)/issub)*P(")")
+local option=spaces*(keyvalue+falsevalue+truevalue+somevalue)*spaces
+local options=P(":")*spaces*(P(";")^0*option)^0
+local pattern=(filename_1+filename_2+fontname_1+fontname_2)*subvalue^0*crapspec^0*options^0
+local function colonized(specification)
+ list={}
+ lpeg.match(pattern,specification.specification)
+ list.crap=nil
+ if list.name then
+ specification.name=list.name
+ list.name=nil
+ end
+ if list.lookup then
+ specification.lookup=list.lookup
+ list.lookup=nil
+ end
+ if list.sub then
+ specification.sub=list.sub
+ list.sub=nil
+ end
+ specification.features.normal=fonts.handlers.otf.features.normalize(list)
+ return specification
+end
+fonts.definers.registersplit(":",colonized,"cryptic")
+fonts.definers.registersplit("",colonized,"more cryptic")
+function fonts.definers.applypostprocessors(tfmdata)
+ local postprocessors=tfmdata.postprocessors
+ if postprocessors then
+ for i=1,#postprocessors do
+ local extrahash=postprocessors[i](tfmdata)
+ if type(extrahash)=="string" and extrahash~="" then
+ extrahash=string.gsub(lower(extrahash),"[^a-z]","-")
+ tfmdata.properties.fullname=format("%s-%s",tfmdata.properties.fullname,extrahash)
+ end
+ end
+ end
+ return tfmdata
+end
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['luatex-fonts-ext']={
+ version=1.001,
+ comment="companion to luatex-*.tex",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+if context then
+ texio.write_nl("fatal error: this module is not for context")
+ os.exit()
+end
+local fonts=fonts
+local otffeatures=fonts.constructors.newfeatures("otf")
+local function initializeitlc(tfmdata,value)
+ if value then
+ local parameters=tfmdata.parameters
+ local italicangle=parameters.italicangle
+ if italicangle and italicangle~=0 then
+ local properties=tfmdata.properties
+ local factor=tonumber(value) or 1
+ properties.hasitalics=true
+ properties.autoitalicamount=factor*(parameters.uwidth or 40)/2
+ end
+ end
+end
+otffeatures.register {
+ name="itlc",
+ description="italic correction",
+ initializers={
+ base=initializeitlc,
+ node=initializeitlc,
+ }
+}
+local function initializeslant(tfmdata,value)
+ value=tonumber(value)
+ if not value then
+ value=0
+ elseif value>1 then
+ value=1
+ elseif value<-1 then
+ value=-1
+ end
+ tfmdata.parameters.slantfactor=value
+end
+otffeatures.register {
+ name="slant",
+ description="slant glyphs",
+ initializers={
+ base=initializeslant,
+ node=initializeslant,
+ }
+}
+local function initializeextend(tfmdata,value)
+ value=tonumber(value)
+ if not value then
+ value=0
+ elseif value>10 then
+ value=10
+ elseif value<-10 then
+ value=-10
+ end
+ tfmdata.parameters.extendfactor=value
+end
+otffeatures.register {
+ name="extend",
+ description="scale glyphs horizontally",
+ initializers={
+ base=initializeextend,
+ node=initializeextend,
+ }
+}
+fonts.protrusions=fonts.protrusions or {}
+fonts.protrusions.setups=fonts.protrusions.setups or {}
+local setups=fonts.protrusions.setups
+local function initializeprotrusion(tfmdata,value)
+ if value then
+ local setup=setups[value]
+ if setup then
+ local factor,left,right=setup.factor or 1,setup.left or 1,setup.right or 1
+ local emwidth=tfmdata.parameters.quad
+ tfmdata.parameters.protrusion={
+ auto=true,
+ }
+ for i,chr in next,tfmdata.characters do
+ local v,pl,pr=setup[i],nil,nil
+ if v then
+ pl,pr=v[1],v[2]
+ end
+ if pl and pl~=0 then chr.left_protruding=left*pl*factor end
+ if pr and pr~=0 then chr.right_protruding=right*pr*factor end
+ end
+ end
+ end
+end
+otffeatures.register {
+ name="protrusion",
+ description="shift characters into the left and or right margin",
+ initializers={
+ base=initializeprotrusion,
+ node=initializeprotrusion,
+ }
+}
+fonts.expansions=fonts.expansions or {}
+fonts.expansions.setups=fonts.expansions.setups or {}
+local setups=fonts.expansions.setups
+local function initializeexpansion(tfmdata,value)
+ if value then
+ local setup=setups[value]
+ if setup then
+ local factor=setup.factor or 1
+ tfmdata.parameters.expansion={
+ stretch=10*(setup.stretch or 0),
+ shrink=10*(setup.shrink or 0),
+ step=10*(setup.step or 0),
+ auto=true,
+ }
+ for i,chr in next,tfmdata.characters do
+ local v=setup[i]
+ if v and v~=0 then
+ chr.expansion_factor=v*factor
+ else
+ chr.expansion_factor=factor
+ end
+ end
+ end
+ end
+end
+otffeatures.register {
+ name="expansion",
+ description="apply hz optimization",
+ initializers={
+ base=initializeexpansion,
+ node=initializeexpansion,
+ }
+}
+function fonts.loggers.onetimemessage() end
+local byte=string.byte
+fonts.expansions.setups['default']={
+ stretch=2,shrink=2,step=.5,factor=1,
+ [byte('A')]=0.5,[byte('B')]=0.7,[byte('C')]=0.7,[byte('D')]=0.5,[byte('E')]=0.7,
+ [byte('F')]=0.7,[byte('G')]=0.5,[byte('H')]=0.7,[byte('K')]=0.7,[byte('M')]=0.7,
+ [byte('N')]=0.7,[byte('O')]=0.5,[byte('P')]=0.7,[byte('Q')]=0.5,[byte('R')]=0.7,
+ [byte('S')]=0.7,[byte('U')]=0.7,[byte('W')]=0.7,[byte('Z')]=0.7,
+ [byte('a')]=0.7,[byte('b')]=0.7,[byte('c')]=0.7,[byte('d')]=0.7,[byte('e')]=0.7,
+ [byte('g')]=0.7,[byte('h')]=0.7,[byte('k')]=0.7,[byte('m')]=0.7,[byte('n')]=0.7,
+ [byte('o')]=0.7,[byte('p')]=0.7,[byte('q')]=0.7,[byte('s')]=0.7,[byte('u')]=0.7,
+ [byte('w')]=0.7,[byte('z')]=0.7,
+ [byte('2')]=0.7,[byte('3')]=0.7,[byte('6')]=0.7,[byte('8')]=0.7,[byte('9')]=0.7,
+}
+fonts.protrusions.setups['default']={
+ factor=1,left=1,right=1,
+ [0x002C]={ 0,1 },
+ [0x002E]={ 0,1 },
+ [0x003A]={ 0,1 },
+ [0x003B]={ 0,1 },
+ [0x002D]={ 0,1 },
+ [0x2013]={ 0,0.50 },
+ [0x2014]={ 0,0.33 },
+ [0x3001]={ 0,1 },
+ [0x3002]={ 0,1 },
+ [0x060C]={ 0,1 },
+ [0x061B]={ 0,1 },
+ [0x06D4]={ 0,1 },
+}
+fonts.handlers.otf.features.normalize=function(t)
+ if t.rand then
+ t.rand="random"
+ end
+ return t
+end
+function fonts.helpers.nametoslot(name)
+ local t=type(name)
+ if t=="string" then
+ local tfmdata=fonts.hashes.identifiers[currentfont()]
+ local shared=tfmdata and tfmdata.shared
+ local fntdata=shared and shared.rawdata
+ return fntdata and fntdata.resources.unicodes[name]
+ elseif t=="number" then
+ return n
+ end
+end
+fonts.encodings=fonts.encodings or {}
+local reencodings={}
+fonts.encodings.reencodings=reencodings
+local function specialreencode(tfmdata,value)
+ local encoding=value and reencodings[value]
+ if encoding then
+ local temp={}
+ local char=tfmdata.characters
+ for k,v in next,encoding do
+ temp[k]=char[v]
+ end
+ for k,v in next,temp do
+ char[k]=temp[k]
+ end
+ return string.format("reencoded:%s",value)
+ end
+end
+local function reencode(tfmdata,value)
+ tfmdata.postprocessors=tfmdata.postprocessors or {}
+ table.insert(tfmdata.postprocessors,
+ function(tfmdata)
+ return specialreencode(tfmdata,value)
+ end
+ )
+end
+otffeatures.register {
+ name="reencode",
+ description="reencode characters",
+ manipulators={
+ base=reencode,
+ node=reencode,
+ }
+}
+
+end -- closure
+
+do -- begin closure to overcome local limits and interference
+
+if not modules then modules={} end modules ['luatex-fonts-cbk']={
+ version=1.001,
+ comment="companion to luatex-*.tex",
+ author="Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright="PRAGMA ADE / ConTeXt Development Team",
+ license="see context related readme files"
+}
+if context then
+ texio.write_nl("fatal error: this module is not for context")
+ os.exit()
+end
+local fonts=fonts
+local nodes=nodes
+local traverse_id=node.traverse_id
+local glyph_code=nodes.nodecodes.glyph
+function nodes.handlers.characters(head)
+ local fontdata=fonts.hashes.identifiers
+ if fontdata then
+ local usedfonts,done,prevfont={},false,nil
+ for n in traverse_id(glyph_code,head) do
+ local font=n.font
+ if font~=prevfont then
+ prevfont=font
+ local used=usedfonts[font]
+ if not used then
+ local tfmdata=fontdata[font]
+ if tfmdata then
+ local shared=tfmdata.shared
+ if shared then
+ local processors=shared.processes
+ if processors and #processors>0 then
+ usedfonts[font]=processors
+ done=true
+ end
+ end
+ end
+ end
+ end
+ end
+ if done then
+ for font,processors in next,usedfonts do
+ for i=1,#processors do
+ local h,d=processors[i](head,font,0)
+ head,done=h or head,done or d
+ end
+ end
+ end
+ return head,true
+ else
+ return head,false
+ end
+end
+function nodes.simple_font_handler(head)
+ head=nodes.handlers.characters(head)
+ nodes.injections.handler(head)
+ nodes.handlers.protectglyphs(head)
+ head=node.ligaturing(head)
+ head=node.kerning(head)
+ return head
+end
+
+end -- closure
diff --git a/src/luaotfload-configuration.lua b/src/luaotfload-configuration.lua
index a375c37..b198697 100644
--- a/src/luaotfload-configuration.lua
+++ b/src/luaotfload-configuration.lua
@@ -5,7 +5,7 @@
-- REQUIREMENTS: Luaotfload 2.5 or above
-- AUTHOR: Philipp Gesang (Phg), <phg42.2a@gmail.com>
-- VERSION: same as Luaotfload
--- MODIFIED: 2014-07-24 21:49:31+0200
+-- MODIFIED: 2015-03-16 07:48:58+0100
-------------------------------------------------------------------------------
--
@@ -130,6 +130,19 @@ local feature_presets = {
},
}
+--[[doc--
+
+ We allow loading of arbitrary fontloaders. Nevertheless we maintain a
+ list of the “official” ones shipped with Luaotfload so we can emit a
+ different log message.
+
+--doc]]--
+
+local registered_loaders = {
+ default = "fontloader",
+ fontloader = "fontloader",
+ tl2013 = "tl2013",
+}
-------------------------------------------------------------------------------
@@ -441,6 +454,23 @@ local option_spec = {
return "patch"
end,
},
+ fontloader = {
+ in_t = string_t,
+ out_t = string_t,
+ transform = function (id)
+ local ldr = registered_loaders[id]
+ if ldr ~= nil then
+ logreport ("log", 2, "conf",
+ "Using predefined fontloader \"%s\".", ldr)
+ return ldr
+ end
+ logreport ("log", 0, "conf",
+ "Requested fontloader \"%s\" not defined, "
+ .. "use at your own risk.",
+ id)
+ return id
+ end,
+ },
log_level = {
in_t = number_t,
out_t = number_t, --- TODO int_t from 5.3.x on
@@ -589,6 +619,7 @@ local formatters = {
run = {
color_callback = { false, format_string },
definer = { false, format_string },
+ fontloader = { false, format_string },
log_level = { false, format_integer },
resolver = { false, format_string },
},
diff --git a/src/luaotfload-main.lua b/src/luaotfload-main.lua
index a090cce..ee8966c 100644
--- a/src/luaotfload-main.lua
+++ b/src/luaotfload-main.lua
@@ -4,7 +4,7 @@
-- REQUIREMENTS: luatex v.0.79 or later; packages lualibs, luatexbase
-- AUTHOR: Élie Roux, Khaled Hosny, Philipp Gesang
-- VERSION: same as Luaotfload
--- MODIFIED: 2014-08-08 23:14:37+0200
+-- MODIFIED: 2015-03-11 07:49:20+0100
-----------------------------------------------------------------------
--
--- Note:
@@ -101,12 +101,15 @@ luaotfload.log.tex = {
--doc]]--
-local min_luatex_version = 79
+local min_luatex_version = 79 --- i. e. 0.79
+local fontloader_package = "fontloader" --- default: from current Context
if tex.luatexversion < min_luatex_version then
warning ("LuaTeX v%.2f is old, v%.2f or later is recommended.",
tex.luatexversion / 100,
min_luatex_version / 100)
+ warning ("using fallback fontloader -- newer functionality not available")
+ fontloader_package = "tl2014" --- TODO fallback should be configurable too
--- we install a fallback for older versions as a safety
if not node.end_of_math then
local math_t = node.id "math"
@@ -306,9 +309,13 @@ tex.attribute[0] = 0
Now that things are sorted out we can finally load the fontloader.
+ For less current distibutions we ship the code from TL 2014 that should be
+ compatible with Luatex 0.76.
+
--doc]]--
-load_fontloader_module "fontloader"
+load_fontloader_module (fontloader_package)
+
---load_fontloader_module "font-odv.lua" --- <= Devanagari support from Context
if fonts then
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-05 09:16:26 +0000